Home / 40,065.81-55,285.97-22,158.38

Finding the Fourth Proportional to 40,065.81, 55,285.97 and 22,158.38

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Solution

The fourth proportional to 40,065.81, 55,285.97 and 22,158.38 is: 30,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.81 : 55,285.97 = 22,158.38 : x
  2. Step 2: Convert to fraction form
    40,065.81/55,285.97 = 22,158.38/x
  3. Step 3: Cross multiply
    40,065.81x = 55,285.97 × 22,158.38
  4. Step 4: Simplify right side
    40,065.81x = 1,225,047,144.71
  5. Step 5: Solve for x
    x = 1,225,047,144.71/40,065.81
  6. Step 6: Final answer
    x = 30,575.87

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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.