Home / 42,146.06-63,219.10-10,981.31

Finding the Fourth Proportional to 42,146.06, 63,219.10 and 10,981.31

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Solution

The fourth proportional to 42,146.06, 63,219.10 and 10,981.31 is: 16,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,146.06 : 63,219.10 = 10,981.31 : x
  2. Step 2: Convert to fraction form
    42,146.06/63,219.10 = 10,981.31/x
  3. Step 3: Cross multiply
    42,146.06x = 63,219.10 × 10,981.31
  4. Step 4: Simplify right side
    42,146.06x = 694,228,665.62
  5. Step 5: Solve for x
    x = 694,228,665.62/42,146.06
  6. Step 6: Final answer
    x = 16,471.97

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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.