Home / 22,047.79-30,409.28-15,330.05

Finding the Fourth Proportional to 22,047.79, 30,409.28 and 15,330.05

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Solution

The fourth proportional to 22,047.79, 30,409.28 and 15,330.05 is: 21,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,047.79 : 30,409.28 = 15,330.05 : x
  2. Step 2: Convert to fraction form
    22,047.79/30,409.28 = 15,330.05/x
  3. Step 3: Cross multiply
    22,047.79x = 30,409.28 × 15,330.05
  4. Step 4: Simplify right side
    22,047.79x = 466,175,782.86
  5. Step 5: Solve for x
    x = 466,175,782.86/22,047.79
  6. Step 6: Final answer
    x = 21,143.88

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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.