Home / 42,938.97-64,400.25-13,357.17

Finding the Fourth Proportional to 42,938.97, 64,400.25 and 13,357.17

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Solution

The fourth proportional to 42,938.97, 64,400.25 and 13,357.17 is: 20,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,938.97 : 64,400.25 = 13,357.17 : x
  2. Step 2: Convert to fraction form
    42,938.97/64,400.25 = 13,357.17/x
  3. Step 3: Cross multiply
    42,938.97x = 64,400.25 × 13,357.17
  4. Step 4: Simplify right side
    42,938.97x = 860,205,087.29
  5. Step 5: Solve for x
    x = 860,205,087.29/42,938.97
  6. Step 6: Final answer
    x = 20,033.20

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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.