Home / 22,140.64-30,552.24-12,707.20

Finding the Fourth Proportional to 22,140.64, 30,552.24 and 12,707.20

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Solution

The fourth proportional to 22,140.64, 30,552.24 and 12,707.20 is: 17,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.64 : 30,552.24 = 12,707.20 : x
  2. Step 2: Convert to fraction form
    22,140.64/30,552.24 = 12,707.20/x
  3. Step 3: Cross multiply
    22,140.64x = 30,552.24 × 12,707.20
  4. Step 4: Simplify right side
    22,140.64x = 388,233,424.13
  5. Step 5: Solve for x
    x = 388,233,424.13/22,140.64
  6. Step 6: Final answer
    x = 17,534.88

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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.