Home / 42,009.03-63,024.17-12,426.75

Finding the Fourth Proportional to 42,009.03, 63,024.17 and 12,426.75

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Solution

The fourth proportional to 42,009.03, 63,024.17 and 12,426.75 is: 18,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.03 : 63,024.17 = 12,426.75 : x
  2. Step 2: Convert to fraction form
    42,009.03/63,024.17 = 12,426.75/x
  3. Step 3: Cross multiply
    42,009.03x = 63,024.17 × 12,426.75
  4. Step 4: Simplify right side
    42,009.03x = 783,185,542.41
  5. Step 5: Solve for x
    x = 783,185,542.41/42,009.03
  6. Step 6: Final answer
    x = 18,643.27

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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.