Home / 39,715.20-54,808.32-22,722.24

Finding the Fourth Proportional to 39,715.20, 54,808.32 and 22,722.24

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Solution

The fourth proportional to 39,715.20, 54,808.32 and 22,722.24 is: 31,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,715.20 : 54,808.32 = 22,722.24 : x
  2. Step 2: Convert to fraction form
    39,715.20/54,808.32 = 22,722.24/x
  3. Step 3: Cross multiply
    39,715.20x = 54,808.32 × 22,722.24
  4. Step 4: Simplify right side
    39,715.20x = 1,245,367,801.04
  5. Step 5: Solve for x
    x = 1,245,367,801.04/39,715.20
  6. Step 6: Final answer
    x = 31,357.46

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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.