Home / 23,089.14-31,863.02-12,478.79

Finding the Fourth Proportional to 23,089.14, 31,863.02 and 12,478.79

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Solution

The fourth proportional to 23,089.14, 31,863.02 and 12,478.79 is: 17,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,089.14 : 31,863.02 = 12,478.79 : x
  2. Step 2: Convert to fraction form
    23,089.14/31,863.02 = 12,478.79/x
  3. Step 3: Cross multiply
    23,089.14x = 31,863.02 × 12,478.79
  4. Step 4: Simplify right side
    23,089.14x = 397,611,952.61
  5. Step 5: Solve for x
    x = 397,611,952.61/23,089.14
  6. Step 6: Final answer
    x = 17,220.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.