Home / 22,696.39-31,299.02-15,143.02

Finding the Fourth Proportional to 22,696.39, 31,299.02 and 15,143.02

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Solution

The fourth proportional to 22,696.39, 31,299.02 and 15,143.02 is: 20,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,696.39 : 31,299.02 = 15,143.02 : x
  2. Step 2: Convert to fraction form
    22,696.39/31,299.02 = 15,143.02/x
  3. Step 3: Cross multiply
    22,696.39x = 31,299.02 × 15,143.02
  4. Step 4: Simplify right side
    22,696.39x = 473,961,685.84
  5. Step 5: Solve for x
    x = 473,961,685.84/22,696.39
  6. Step 6: Final answer
    x = 20,882.69

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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.