Home / 22,438.76-30,971.94-15,008.36

Finding the Fourth Proportional to 22,438.76, 30,971.94 and 15,008.36

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Solution

The fourth proportional to 22,438.76, 30,971.94 and 15,008.36 is: 20,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,438.76 : 30,971.94 = 15,008.36 : x
  2. Step 2: Convert to fraction form
    22,438.76/30,971.94 = 15,008.36/x
  3. Step 3: Cross multiply
    22,438.76x = 30,971.94 × 15,008.36
  4. Step 4: Simplify right side
    22,438.76x = 464,838,025.42
  5. Step 5: Solve for x
    x = 464,838,025.42/22,438.76
  6. Step 6: Final answer
    x = 20,715.85

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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.