Home / 20,862.38-31,256.98-17,374.84

Finding the Fourth Proportional to 20,862.38, 31,256.98 and 17,374.84

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Solution

The fourth proportional to 20,862.38, 31,256.98 and 17,374.84 is: 26,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.38 : 31,256.98 = 17,374.84 : x
  2. Step 2: Convert to fraction form
    20,862.38/31,256.98 = 17,374.84/x
  3. Step 3: Cross multiply
    20,862.38x = 31,256.98 × 17,374.84
  4. Step 4: Simplify right side
    20,862.38x = 543,085,026.38
  5. Step 5: Solve for x
    x = 543,085,026.38/20,862.38
  6. Step 6: Final answer
    x = 26,031.79

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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.