Home / 26,890.79-40,336.17-8,170.76

Finding the Fourth Proportional to 26,890.79, 40,336.17 and 8,170.76

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Solution

The fourth proportional to 26,890.79, 40,336.17 and 8,170.76 is: 12,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,890.79 : 40,336.17 = 8,170.76 : x
  2. Step 2: Convert to fraction form
    26,890.79/40,336.17 = 8,170.76/x
  3. Step 3: Cross multiply
    26,890.79x = 40,336.17 × 8,170.76
  4. Step 4: Simplify right side
    26,890.79x = 329,576,962.71
  5. Step 5: Solve for x
    x = 329,576,962.71/26,890.79
  6. Step 6: Final answer
    x = 12,256.13

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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.