Home / 26,878.72-40,318.14-8,158.92

Finding the Fourth Proportional to 26,878.72, 40,318.14 and 8,158.92

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Solution

The fourth proportional to 26,878.72, 40,318.14 and 8,158.92 is: 12,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,878.72 : 40,318.14 = 8,158.92 : x
  2. Step 2: Convert to fraction form
    26,878.72/40,318.14 = 8,158.92/x
  3. Step 3: Cross multiply
    26,878.72x = 40,318.14 × 8,158.92
  4. Step 4: Simplify right side
    26,878.72x = 328,952,478.81
  5. Step 5: Solve for x
    x = 328,952,478.81/26,878.72
  6. Step 6: Final answer
    x = 12,238.40

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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.