Home / 21,026.57-31,539.85-14,432.76

Finding the Fourth Proportional to 21,026.57, 31,539.85 and 14,432.76

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Solution

The fourth proportional to 21,026.57, 31,539.85 and 14,432.76 is: 21,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.57 : 31,539.85 = 14,432.76 : x
  2. Step 2: Convert to fraction form
    21,026.57/31,539.85 = 14,432.76/x
  3. Step 3: Cross multiply
    21,026.57x = 31,539.85 × 14,432.76
  4. Step 4: Simplify right side
    21,026.57x = 455,207,049.40
  5. Step 5: Solve for x
    x = 455,207,049.40/21,026.57
  6. Step 6: Final answer
    x = 21,649.14

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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.