Home / 20,131.34-30,196.40-8,444.25

Finding the Fourth Proportional to 20,131.34, 30,196.40 and 8,444.25

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Solution

The fourth proportional to 20,131.34, 30,196.40 and 8,444.25 is: 12,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.34 : 30,196.40 = 8,444.25 : x
  2. Step 2: Convert to fraction form
    20,131.34/30,196.40 = 8,444.25/x
  3. Step 3: Cross multiply
    20,131.34x = 30,196.40 × 8,444.25
  4. Step 4: Simplify right side
    20,131.34x = 254,985,908.48
  5. Step 5: Solve for x
    x = 254,985,908.48/20,131.34
  6. Step 6: Final answer
    x = 12,666.12

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Half scale
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Double scale
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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.