Home / 42,424.80-63,637.20-25,817.40

Finding the Fourth Proportional to 42,424.80, 63,637.20 and 25,817.40

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Solution

The fourth proportional to 42,424.80, 63,637.20 and 25,817.40 is: 38,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,424.80 : 63,637.20 = 25,817.40 : x
  2. Step 2: Convert to fraction form
    42,424.80/63,637.20 = 25,817.40/x
  3. Step 3: Cross multiply
    42,424.80x = 63,637.20 × 25,817.40
  4. Step 4: Simplify right side
    42,424.80x = 1,642,947,047.28
  5. Step 5: Solve for x
    x = 1,642,947,047.28/42,424.80
  6. Step 6: Final answer
    x = 38,726.10

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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.