Home / 28,258.97-42,387.36-11,399.22

Finding the Fourth Proportional to 28,258.97, 42,387.36 and 11,399.22

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Solution

The fourth proportional to 28,258.97, 42,387.36 and 11,399.22 is: 17,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.97 : 42,387.36 = 11,399.22 : x
  2. Step 2: Convert to fraction form
    28,258.97/42,387.36 = 11,399.22/x
  3. Step 3: Cross multiply
    28,258.97x = 42,387.36 × 11,399.22
  4. Step 4: Simplify right side
    28,258.97x = 483,182,841.86
  5. Step 5: Solve for x
    x = 483,182,841.86/28,258.97
  6. Step 6: Final answer
    x = 17,098.39

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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.