Home / 39,950.89-55,132.42-22,045.90

Finding the Fourth Proportional to 39,950.89, 55,132.42 and 22,045.90

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Solution

The fourth proportional to 39,950.89, 55,132.42 and 22,045.90 is: 30,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,950.89 : 55,132.42 = 22,045.90 : x
  2. Step 2: Convert to fraction form
    39,950.89/55,132.42 = 22,045.90/x
  3. Step 3: Cross multiply
    39,950.89x = 55,132.42 × 22,045.90
  4. Step 4: Simplify right side
    39,950.89x = 1,215,443,818.08
  5. Step 5: Solve for x
    x = 1,215,443,818.08/39,950.89
  6. Step 6: Final answer
    x = 30,423.45

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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.