Home / 31,705.20-47,557.80-9,518.76

Finding the Fourth Proportional to 31,705.20, 47,557.80 and 9,518.76

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Solution

The fourth proportional to 31,705.20, 47,557.80 and 9,518.76 is: 14,278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.20 : 47,557.80 = 9,518.76 : x
  2. Step 2: Convert to fraction form
    31,705.20/47,557.80 = 9,518.76/x
  3. Step 3: Cross multiply
    31,705.20x = 47,557.80 × 9,518.76
  4. Step 4: Simplify right side
    31,705.20x = 452,691,284.33
  5. Step 5: Solve for x
    x = 452,691,284.33/31,705.20
  6. Step 6: Final answer
    x = 14,278.14

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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.