Home / 22,162.57-30,581.32-12,731.13

Finding the Fourth Proportional to 22,162.57, 30,581.32 and 12,731.13

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Solution

The fourth proportional to 22,162.57, 30,581.32 and 12,731.13 is: 17,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,162.57 : 30,581.32 = 12,731.13 : x
  2. Step 2: Convert to fraction form
    22,162.57/30,581.32 = 12,731.13/x
  3. Step 3: Cross multiply
    22,162.57x = 30,581.32 × 12,731.13
  4. Step 4: Simplify right side
    22,162.57x = 389,334,760.49
  5. Step 5: Solve for x
    x = 389,334,760.49/22,162.57
  6. Step 6: Final answer
    x = 17,567.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.