Home / 26,878.95-40,318.49-8,159.13

Finding the Fourth Proportional to 26,878.95, 40,318.49 and 8,159.13

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Solution

The fourth proportional to 26,878.95, 40,318.49 and 8,159.13 is: 12,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,878.95 : 40,318.49 = 8,159.13 : x
  2. Step 2: Convert to fraction form
    26,878.95/40,318.49 = 8,159.13/x
  3. Step 3: Cross multiply
    26,878.95x = 40,318.49 × 8,159.13
  4. Step 4: Simplify right side
    26,878.95x = 328,963,821.71
  5. Step 5: Solve for x
    x = 328,963,821.71/26,878.95
  6. Step 6: Final answer
    x = 12,238.72

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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.