Home / 19,877.89-27,432.14-10,925.71

Finding the Fourth Proportional to 19,877.89, 27,432.14 and 10,925.71

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Solution

The fourth proportional to 19,877.89, 27,432.14 and 10,925.71 is: 15,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.89 : 27,432.14 = 10,925.71 : x
  2. Step 2: Convert to fraction form
    19,877.89/27,432.14 = 10,925.71/x
  3. Step 3: Cross multiply
    19,877.89x = 27,432.14 × 10,925.71
  4. Step 4: Simplify right side
    19,877.89x = 299,715,606.32
  5. Step 5: Solve for x
    x = 299,715,606.32/19,877.89
  6. Step 6: Final answer
    x = 15,077.84

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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.