Home / 39,810.23-54,931.85-22,811.20

Finding the Fourth Proportional to 39,810.23, 54,931.85 and 22,811.20

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Solution

The fourth proportional to 39,810.23, 54,931.85 and 22,811.20 is: 31,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.23 : 54,931.85 = 22,811.20 : x
  2. Step 2: Convert to fraction form
    39,810.23/54,931.85 = 22,811.20/x
  3. Step 3: Cross multiply
    39,810.23x = 54,931.85 × 22,811.20
  4. Step 4: Simplify right side
    39,810.23x = 1,253,061,371.33
  5. Step 5: Solve for x
    x = 1,253,061,371.33/39,810.23
  6. Step 6: Final answer
    x = 31,475.86

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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.