Home / 31,712.94-47,565.30-11,988.93

Finding the Fourth Proportional to 31,712.94, 47,565.30 and 11,988.93

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Solution

The fourth proportional to 31,712.94, 47,565.30 and 11,988.93 is: 17,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.94 : 47,565.30 = 11,988.93 : x
  2. Step 2: Convert to fraction form
    31,712.94/47,565.30 = 11,988.93/x
  3. Step 3: Cross multiply
    31,712.94x = 47,565.30 × 11,988.93
  4. Step 4: Simplify right side
    31,712.94x = 570,257,052.13
  5. Step 5: Solve for x
    x = 570,257,052.13/31,712.94
  6. Step 6: Final answer
    x = 17,981.84

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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.