Home / 25,743.86-38,630.39-13,897.47

Finding the Fourth Proportional to 25,743.86, 38,630.39 and 13,897.47

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Solution

The fourth proportional to 25,743.86, 38,630.39 and 13,897.47 is: 20,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.86 : 38,630.39 = 13,897.47 : x
  2. Step 2: Convert to fraction form
    25,743.86/38,630.39 = 13,897.47/x
  3. Step 3: Cross multiply
    25,743.86x = 38,630.39 × 13,897.47
  4. Step 4: Simplify right side
    25,743.86x = 536,864,761.49
  5. Step 5: Solve for x
    x = 536,864,761.49/25,743.86
  6. Step 6: Final answer
    x = 20,854.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.