Home / 21,685.06-29,925.25-12,124.94

Finding the Fourth Proportional to 21,685.06, 29,925.25 and 12,124.94

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Solution

The fourth proportional to 21,685.06, 29,925.25 and 12,124.94 is: 16,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685.06 : 29,925.25 = 12,124.94 : x
  2. Step 2: Convert to fraction form
    21,685.06/29,925.25 = 12,124.94/x
  3. Step 3: Cross multiply
    21,685.06x = 29,925.25 × 12,124.94
  4. Step 4: Simplify right side
    21,685.06x = 362,841,860.74
  5. Step 5: Solve for x
    x = 362,841,860.74/21,685.06
  6. Step 6: Final answer
    x = 16,732.34

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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.