Home / 42,370.32-63,576-17,428.80

Finding the Fourth Proportional to 42,370.32, 63,576 and 17,428.80

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Solution

The fourth proportional to 42,370.32, 63,576 and 17,428.80 is: 26,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,370.32 : 63,576 = 17,428.80 : x
  2. Step 2: Convert to fraction form
    42,370.32/63,576 = 17,428.80/x
  3. Step 3: Cross multiply
    42,370.32x = 63,576 × 17,428.80
  4. Step 4: Simplify right side
    42,370.32x = 1,108,053,388.80
  5. Step 5: Solve for x
    x = 1,108,053,388.80/42,370.32
  6. Step 6: Final answer
    x = 26,151.64

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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.