Home / 42,368.43-63,475.19-19,837.78

Finding the Fourth Proportional to 42,368.43, 63,475.19 and 19,837.78

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Solution

The fourth proportional to 42,368.43, 63,475.19 and 19,837.78 is: 29,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.43 : 63,475.19 = 19,837.78 : x
  2. Step 2: Convert to fraction form
    42,368.43/63,475.19 = 19,837.78/x
  3. Step 3: Cross multiply
    42,368.43x = 63,475.19 × 19,837.78
  4. Step 4: Simplify right side
    42,368.43x = 1,259,206,596.80
  5. Step 5: Solve for x
    x = 1,259,206,596.80/42,368.43
  6. Step 6: Final answer
    x = 29,720.40

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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.