Home / 42,312.73-63,456.30-12,722.71

Finding the Fourth Proportional to 42,312.73, 63,456.30 and 12,722.71

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Solution

The fourth proportional to 42,312.73, 63,456.30 and 12,722.71 is: 19,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,312.73 : 63,456.30 = 12,722.71 : x
  2. Step 2: Convert to fraction form
    42,312.73/63,456.30 = 12,722.71/x
  3. Step 3: Cross multiply
    42,312.73x = 63,456.30 × 12,722.71
  4. Step 4: Simplify right side
    42,312.73x = 807,336,102.57
  5. Step 5: Solve for x
    x = 807,336,102.57/42,312.73
  6. Step 6: Final answer
    x = 19,080.22

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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.