Home / 22,019.76-30,382.92-13,070.07

Finding the Fourth Proportional to 22,019.76, 30,382.92 and 13,070.07

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Solution

The fourth proportional to 22,019.76, 30,382.92 and 13,070.07 is: 18,034.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019.76 : 30,382.92 = 13,070.07 : x
  2. Step 2: Convert to fraction form
    22,019.76/30,382.92 = 13,070.07/x
  3. Step 3: Cross multiply
    22,019.76x = 30,382.92 × 13,070.07
  4. Step 4: Simplify right side
    22,019.76x = 397,106,891.20
  5. Step 5: Solve for x
    x = 397,106,891.20/22,019.76
  6. Step 6: Final answer
    x = 18,034.12

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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.