Home / 22,982.64-31,719.28-13,425.68

Finding the Fourth Proportional to 22,982.64, 31,719.28 and 13,425.68

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Solution

The fourth proportional to 22,982.64, 31,719.28 and 13,425.68 is: 18,529.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,982.64 : 31,719.28 = 13,425.68 : x
  2. Step 2: Convert to fraction form
    22,982.64/31,719.28 = 13,425.68/x
  3. Step 3: Cross multiply
    22,982.64x = 31,719.28 × 13,425.68
  4. Step 4: Simplify right side
    22,982.64x = 425,852,903.11
  5. Step 5: Solve for x
    x = 425,852,903.11/22,982.64
  6. Step 6: Final answer
    x = 18,529.33

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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.