Home / 31,660.08-47,490.12-8,288.52

Finding the Fourth Proportional to 31,660.08, 47,490.12 and 8,288.52

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Solution

The fourth proportional to 31,660.08, 47,490.12 and 8,288.52 is: 12,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.08 : 47,490.12 = 8,288.52 : x
  2. Step 2: Convert to fraction form
    31,660.08/47,490.12 = 8,288.52/x
  3. Step 3: Cross multiply
    31,660.08x = 47,490.12 × 8,288.52
  4. Step 4: Simplify right side
    31,660.08x = 393,622,809.42
  5. Step 5: Solve for x
    x = 393,622,809.42/31,660.08
  6. Step 6: Final answer
    x = 12,432.78

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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.