Home / 26,451.15-39,640.68-13,312.55

Finding the Fourth Proportional to 26,451.15, 39,640.68 and 13,312.55

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Solution

The fourth proportional to 26,451.15, 39,640.68 and 13,312.55 is: 19,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,451.15 : 39,640.68 = 13,312.55 : x
  2. Step 2: Convert to fraction form
    26,451.15/39,640.68 = 13,312.55/x
  3. Step 3: Cross multiply
    26,451.15x = 39,640.68 × 13,312.55
  4. Step 4: Simplify right side
    26,451.15x = 527,718,534.53
  5. Step 5: Solve for x
    x = 527,718,534.53/26,451.15
  6. Step 6: Final answer
    x = 19,950.68

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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.