Home / 22,409.28-30,937.68-15,523.20

Finding the Fourth Proportional to 22,409.28, 30,937.68 and 15,523.20

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Solution

The fourth proportional to 22,409.28, 30,937.68 and 15,523.20 is: 21,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,409.28 : 30,937.68 = 15,523.20 : x
  2. Step 2: Convert to fraction form
    22,409.28/30,937.68 = 15,523.20/x
  3. Step 3: Cross multiply
    22,409.28x = 30,937.68 × 15,523.20
  4. Step 4: Simplify right side
    22,409.28x = 480,251,794.18
  5. Step 5: Solve for x
    x = 480,251,794.18/22,409.28
  6. Step 6: Final answer
    x = 21,430.93

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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.