Home / 42,000.43-63,020.97-20,943.46

Finding the Fourth Proportional to 42,000.43, 63,020.97 and 20,943.46

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Solution

The fourth proportional to 42,000.43, 63,020.97 and 20,943.46 is: 31,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,000.43 : 63,020.97 = 20,943.46 : x
  2. Step 2: Convert to fraction form
    42,000.43/63,020.97 = 20,943.46/x
  3. Step 3: Cross multiply
    42,000.43x = 63,020.97 × 20,943.46
  4. Step 4: Simplify right side
    42,000.43x = 1,319,877,223.88
  5. Step 5: Solve for x
    x = 1,319,877,223.88/42,000.43
  6. Step 6: Final answer
    x = 31,425.33

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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.