Home / 21,685.07-29,925.01-12,253.43

Finding the Fourth Proportional to 21,685.07, 29,925.01 and 12,253.43

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Solution

The fourth proportional to 21,685.07, 29,925.01 and 12,253.43 is: 16,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685.07 : 29,925.01 = 12,253.43 : x
  2. Step 2: Convert to fraction form
    21,685.07/29,925.01 = 12,253.43/x
  3. Step 3: Cross multiply
    21,685.07x = 29,925.01 × 12,253.43
  4. Step 4: Simplify right side
    21,685.07x = 366,684,105.41
  5. Step 5: Solve for x
    x = 366,684,105.41/21,685.07
  6. Step 6: Final answer
    x = 16,909.52

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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.