Home / 42,348.46-63,547.29-18,974.90

Finding the Fourth Proportional to 42,348.46, 63,547.29 and 18,974.90

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Solution

The fourth proportional to 42,348.46, 63,547.29 and 18,974.90 is: 28,473.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,348.46 : 63,547.29 = 18,974.90 : x
  2. Step 2: Convert to fraction form
    42,348.46/63,547.29 = 18,974.90/x
  3. Step 3: Cross multiply
    42,348.46x = 63,547.29 × 18,974.90
  4. Step 4: Simplify right side
    42,348.46x = 1,205,803,060.41
  5. Step 5: Solve for x
    x = 1,205,803,060.41/42,348.46
  6. Step 6: Final answer
    x = 28,473.37

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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.