Home / 31,660.08-47,489.76-12,950.16

Finding the Fourth Proportional to 31,660.08, 47,489.76 and 12,950.16

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Solution

The fourth proportional to 31,660.08, 47,489.76 and 12,950.16 is: 19,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.08 : 47,489.76 = 12,950.16 : x
  2. Step 2: Convert to fraction form
    31,660.08/47,489.76 = 12,950.16/x
  3. Step 3: Cross multiply
    31,660.08x = 47,489.76 × 12,950.16
  4. Step 4: Simplify right side
    31,660.08x = 614,999,990.36
  5. Step 5: Solve for x
    x = 614,999,990.36/31,660.08
  6. Step 6: Final answer
    x = 19,425.09

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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.