Home / 19,878.26-27,432.27-10,925.87

Finding the Fourth Proportional to 19,878.26, 27,432.27 and 10,925.87

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Solution

The fourth proportional to 19,878.26, 27,432.27 and 10,925.87 is: 15,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.26 : 27,432.27 = 10,925.87 : x
  2. Step 2: Convert to fraction form
    19,878.26/27,432.27 = 10,925.87/x
  3. Step 3: Cross multiply
    19,878.26x = 27,432.27 × 10,925.87
  4. Step 4: Simplify right side
    19,878.26x = 299,721,278.66
  5. Step 5: Solve for x
    x = 299,721,278.66/19,878.26
  6. Step 6: Final answer
    x = 15,077.85

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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.