Home / 39,377.68-54,339.33-22,381.45

Finding the Fourth Proportional to 39,377.68, 54,339.33 and 22,381.45

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Solution

The fourth proportional to 39,377.68, 54,339.33 and 22,381.45 is: 30,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,377.68 : 54,339.33 = 22,381.45 : x
  2. Step 2: Convert to fraction form
    39,377.68/54,339.33 = 22,381.45/x
  3. Step 3: Cross multiply
    39,377.68x = 54,339.33 × 22,381.45
  4. Step 4: Simplify right side
    39,377.68x = 1,216,192,997.43
  5. Step 5: Solve for x
    x = 1,216,192,997.43/39,377.68
  6. Step 6: Final answer
    x = 30,885.34

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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.