Home / 22,129.20-30,524.34-13,170.01

Finding the Fourth Proportional to 22,129.20, 30,524.34 and 13,170.01

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Solution

The fourth proportional to 22,129.20, 30,524.34 and 13,170.01 is: 18,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.20 : 30,524.34 = 13,170.01 : x
  2. Step 2: Convert to fraction form
    22,129.20/30,524.34 = 13,170.01/x
  3. Step 3: Cross multiply
    22,129.20x = 30,524.34 × 13,170.01
  4. Step 4: Simplify right side
    22,129.20x = 402,005,863.04
  5. Step 5: Solve for x
    x = 402,005,863.04/22,129.20
  6. Step 6: Final answer
    x = 18,166.31

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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.