Home / 36,210.45-54,319.43-9,915.20

Finding the Fourth Proportional to 36,210.45, 54,319.43 and 9,915.20

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Solution

The fourth proportional to 36,210.45, 54,319.43 and 9,915.20 is: 14,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,210.45 : 54,319.43 = 9,915.20 : x
  2. Step 2: Convert to fraction form
    36,210.45/54,319.43 = 9,915.20/x
  3. Step 3: Cross multiply
    36,210.45x = 54,319.43 × 9,915.20
  4. Step 4: Simplify right side
    36,210.45x = 538,588,012.34
  5. Step 5: Solve for x
    x = 538,588,012.34/36,210.45
  6. Step 6: Final answer
    x = 14,873.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.