Home / 42,434.13-63,554.28-20,263.11

Finding the Fourth Proportional to 42,434.13, 63,554.28 and 20,263.11

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Solution

The fourth proportional to 42,434.13, 63,554.28 and 20,263.11 is: 30,348.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,434.13 : 63,554.28 = 20,263.11 : x
  2. Step 2: Convert to fraction form
    42,434.13/63,554.28 = 20,263.11/x
  3. Step 3: Cross multiply
    42,434.13x = 63,554.28 × 20,263.11
  4. Step 4: Simplify right side
    42,434.13x = 1,287,807,366.61
  5. Step 5: Solve for x
    x = 1,287,807,366.61/42,434.13
  6. Step 6: Final answer
    x = 30,348.39

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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.