Home / 36,000.32-49,680.88-20,896.48

Finding the Fourth Proportional to 36,000.32, 49,680.88 and 20,896.48

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Solution

The fourth proportional to 36,000.32, 49,680.88 and 20,896.48 is: 28,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.32 : 49,680.88 = 20,896.48 : x
  2. Step 2: Convert to fraction form
    36,000.32/49,680.88 = 20,896.48/x
  3. Step 3: Cross multiply
    36,000.32x = 49,680.88 × 20,896.48
  4. Step 4: Simplify right side
    36,000.32x = 1,038,155,515.30
  5. Step 5: Solve for x
    x = 1,038,155,515.30/36,000.32
  6. Step 6: Final answer
    x = 28,837.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.