Home / 22,427.28-30,931.47-19,732.68

Finding the Fourth Proportional to 22,427.28, 30,931.47 and 19,732.68

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Solution

The fourth proportional to 22,427.28, 30,931.47 and 19,732.68 is: 27,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,427.28 : 30,931.47 = 19,732.68 : x
  2. Step 2: Convert to fraction form
    22,427.28/30,931.47 = 19,732.68/x
  3. Step 3: Cross multiply
    22,427.28x = 30,931.47 × 19,732.68
  4. Step 4: Simplify right side
    22,427.28x = 610,360,799.44
  5. Step 5: Solve for x
    x = 610,360,799.44/22,427.28
  6. Step 6: Final answer
    x = 27,215.11

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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.