Home / 19,931.25-27,505.13-11,552.61

Finding the Fourth Proportional to 19,931.25, 27,505.13 and 11,552.61

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Solution

The fourth proportional to 19,931.25, 27,505.13 and 11,552.61 is: 15,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.25 : 27,505.13 = 11,552.61 : x
  2. Step 2: Convert to fraction form
    19,931.25/27,505.13 = 11,552.61/x
  3. Step 3: Cross multiply
    19,931.25x = 27,505.13 × 11,552.61
  4. Step 4: Simplify right side
    19,931.25x = 317,756,039.89
  5. Step 5: Solve for x
    x = 317,756,039.89/19,931.25
  6. Step 6: Final answer
    x = 15,942.60

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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.