Home / 22,154.01-30,572.31-12,722.64

Finding the Fourth Proportional to 22,154.01, 30,572.31 and 12,722.64

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Solution

The fourth proportional to 22,154.01, 30,572.31 and 12,722.64 is: 17,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,154.01 : 30,572.31 = 12,722.64 : x
  2. Step 2: Convert to fraction form
    22,154.01/30,572.31 = 12,722.64/x
  3. Step 3: Cross multiply
    22,154.01x = 30,572.31 × 12,722.64
  4. Step 4: Simplify right side
    22,154.01x = 388,960,494.10
  5. Step 5: Solve for x
    x = 388,960,494.10/22,154.01
  6. Step 6: Final answer
    x = 17,557.11

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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.