Home / 38,386.28-57,574.56-13,425.32

Finding the Fourth Proportional to 38,386.28, 57,574.56 and 13,425.32

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Solution

The fourth proportional to 38,386.28, 57,574.56 and 13,425.32 is: 20,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.28 : 57,574.56 = 13,425.32 : x
  2. Step 2: Convert to fraction form
    38,386.28/57,574.56 = 13,425.32/x
  3. Step 3: Cross multiply
    38,386.28x = 57,574.56 × 13,425.32
  4. Step 4: Simplify right side
    38,386.28x = 772,956,891.86
  5. Step 5: Solve for x
    x = 772,956,891.86/38,386.28
  6. Step 6: Final answer
    x = 20,136.28

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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.