Home / 26,616.45-39,940.17-9,988.10

Finding the Fourth Proportional to 26,616.45, 39,940.17 and 9,988.10

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Solution

The fourth proportional to 26,616.45, 39,940.17 and 9,988.10 is: 14,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,616.45 : 39,940.17 = 9,988.10 : x
  2. Step 2: Convert to fraction form
    26,616.45/39,940.17 = 9,988.10/x
  3. Step 3: Cross multiply
    26,616.45x = 39,940.17 × 9,988.10
  4. Step 4: Simplify right side
    26,616.45x = 398,926,411.98
  5. Step 5: Solve for x
    x = 398,926,411.98/26,616.45
  6. Step 6: Final answer
    x = 14,987.96

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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.