Home / 22,980.26-31,711.10-12,908.18

Finding the Fourth Proportional to 22,980.26, 31,711.10 and 12,908.18

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Solution

The fourth proportional to 22,980.26, 31,711.10 and 12,908.18 is: 17,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.26 : 31,711.10 = 12,908.18 : x
  2. Step 2: Convert to fraction form
    22,980.26/31,711.10 = 12,908.18/x
  3. Step 3: Cross multiply
    22,980.26x = 31,711.10 × 12,908.18
  4. Step 4: Simplify right side
    22,980.26x = 409,332,586.80
  5. Step 5: Solve for x
    x = 409,332,586.80/22,980.26
  6. Step 6: Final answer
    x = 17,812.36

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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.