Home / 38,129.28-57,192.16-10,427.20

Finding the Fourth Proportional to 38,129.28, 57,192.16 and 10,427.20

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Solution

The fourth proportional to 38,129.28, 57,192.16 and 10,427.20 is: 15,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.28 : 57,192.16 = 10,427.20 : x
  2. Step 2: Convert to fraction form
    38,129.28/57,192.16 = 10,427.20/x
  3. Step 3: Cross multiply
    38,129.28x = 57,192.16 × 10,427.20
  4. Step 4: Simplify right side
    38,129.28x = 596,354,090.75
  5. Step 5: Solve for x
    x = 596,354,090.75/38,129.28
  6. Step 6: Final answer
    x = 15,640.32

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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.