Home / 22,740.79-31,371-15,197.23

Finding the Fourth Proportional to 22,740.79, 31,371 and 15,197.23

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Solution

The fourth proportional to 22,740.79, 31,371 and 15,197.23 is: 20,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.79 : 31,371 = 15,197.23 : x
  2. Step 2: Convert to fraction form
    22,740.79/31,371 = 15,197.23/x
  3. Step 3: Cross multiply
    22,740.79x = 31,371 × 15,197.23
  4. Step 4: Simplify right side
    22,740.79x = 476,752,302.33
  5. Step 5: Solve for x
    x = 476,752,302.33/22,740.79
  6. Step 6: Final answer
    x = 20,964.63

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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.