Home / 22,278.56-30,743.52-13,320.77

Finding the Fourth Proportional to 22,278.56, 30,743.52 and 13,320.77

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Solution

The fourth proportional to 22,278.56, 30,743.52 and 13,320.77 is: 18,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.56 : 30,743.52 = 13,320.77 : x
  2. Step 2: Convert to fraction form
    22,278.56/30,743.52 = 13,320.77/x
  3. Step 3: Cross multiply
    22,278.56x = 30,743.52 × 13,320.77
  4. Step 4: Simplify right side
    22,278.56x = 409,527,358.91
  5. Step 5: Solve for x
    x = 409,527,358.91/22,278.56
  6. Step 6: Final answer
    x = 18,382.13

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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.