Home / 40,065.11-55,288.90-22,159.74

Finding the Fourth Proportional to 40,065.11, 55,288.90 and 22,159.74

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Solution

The fourth proportional to 40,065.11, 55,288.90 and 22,159.74 is: 30,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.11 : 55,288.90 = 22,159.74 : x
  2. Step 2: Convert to fraction form
    40,065.11/55,288.90 = 22,159.74/x
  3. Step 3: Cross multiply
    40,065.11x = 55,288.90 × 22,159.74
  4. Step 4: Simplify right side
    40,065.11x = 1,225,187,593.49
  5. Step 5: Solve for x
    x = 1,225,187,593.49/40,065.11
  6. Step 6: Final answer
    x = 30,579.91

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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.