Home / 26,718.40-36,871.20-14,781.76

Finding the Fourth Proportional to 26,718.40, 36,871.20 and 14,781.76

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Solution

The fourth proportional to 26,718.40, 36,871.20 and 14,781.76 is: 20,398.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,718.40 : 36,871.20 = 14,781.76 : x
  2. Step 2: Convert to fraction form
    26,718.40/36,871.20 = 14,781.76/x
  3. Step 3: Cross multiply
    26,718.40x = 36,871.20 × 14,781.76
  4. Step 4: Simplify right side
    26,718.40x = 545,021,229.31
  5. Step 5: Solve for x
    x = 545,021,229.31/26,718.40
  6. Step 6: Final answer
    x = 20,398.72

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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.