Home / 22,439.34-30,966.03-13,008.78

Finding the Fourth Proportional to 22,439.34, 30,966.03 and 13,008.78

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Solution

The fourth proportional to 22,439.34, 30,966.03 and 13,008.78 is: 17,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439.34 : 30,966.03 = 13,008.78 : x
  2. Step 2: Convert to fraction form
    22,439.34/30,966.03 = 13,008.78/x
  3. Step 3: Cross multiply
    22,439.34x = 30,966.03 × 13,008.78
  4. Step 4: Simplify right side
    22,439.34x = 402,830,271.74
  5. Step 5: Solve for x
    x = 402,830,271.74/22,439.34
  6. Step 6: Final answer
    x = 17,951.97

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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.