Home / 38,318.28-57,459.16-13,355.28

Finding the Fourth Proportional to 38,318.28, 57,459.16 and 13,355.28

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Solution

The fourth proportional to 38,318.28, 57,459.16 and 13,355.28 is: 20,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,318.28 : 57,459.16 = 13,355.28 : x
  2. Step 2: Convert to fraction form
    38,318.28/57,459.16 = 13,355.28/x
  3. Step 3: Cross multiply
    38,318.28x = 57,459.16 × 13,355.28
  4. Step 4: Simplify right side
    38,318.28x = 767,383,170.36
  5. Step 5: Solve for x
    x = 767,383,170.36/38,318.28
  6. Step 6: Final answer
    x = 20,026.56

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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.