Home / 39,390.98-54,357.38-22,392.87

Finding the Fourth Proportional to 39,390.98, 54,357.38 and 22,392.87

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Solution

The fourth proportional to 39,390.98, 54,357.38 and 22,392.87 is: 30,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,390.98 : 54,357.38 = 22,392.87 : x
  2. Step 2: Convert to fraction form
    39,390.98/54,357.38 = 22,392.87/x
  3. Step 3: Cross multiply
    39,390.98x = 54,357.38 × 22,392.87
  4. Step 4: Simplify right side
    39,390.98x = 1,217,217,596.02
  5. Step 5: Solve for x
    x = 1,217,217,596.02/39,390.98
  6. Step 6: Final answer
    x = 30,900.92

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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.