Home / 22,555.09-31,125.79-12,483.55

Finding the Fourth Proportional to 22,555.09, 31,125.79 and 12,483.55

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Solution

The fourth proportional to 22,555.09, 31,125.79 and 12,483.55 is: 17,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,555.09 : 31,125.79 = 12,483.55 : x
  2. Step 2: Convert to fraction form
    22,555.09/31,125.79 = 12,483.55/x
  3. Step 3: Cross multiply
    22,555.09x = 31,125.79 × 12,483.55
  4. Step 4: Simplify right side
    22,555.09x = 388,560,355.75
  5. Step 5: Solve for x
    x = 388,560,355.75/22,555.09
  6. Step 6: Final answer
    x = 17,227.17

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Double scale
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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.