Home / 22,402.40-30,897.78-13,899.74

Finding the Fourth Proportional to 22,402.40, 30,897.78 and 13,899.74

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Solution

The fourth proportional to 22,402.40, 30,897.78 and 13,899.74 is: 19,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.40 : 30,897.78 = 13,899.74 : x
  2. Step 2: Convert to fraction form
    22,402.40/30,897.78 = 13,899.74/x
  3. Step 3: Cross multiply
    22,402.40x = 30,897.78 × 13,899.74
  4. Step 4: Simplify right side
    22,402.40x = 429,471,108.58
  5. Step 5: Solve for x
    x = 429,471,108.58/22,402.40
  6. Step 6: Final answer
    x = 19,170.76

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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.