Home / 39,720.24-54,833.31-31,195.04

Finding the Fourth Proportional to 39,720.24, 54,833.31 and 31,195.04

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Solution

The fourth proportional to 39,720.24, 54,833.31 and 31,195.04 is: 43,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.24 : 54,833.31 = 31,195.04 : x
  2. Step 2: Convert to fraction form
    39,720.24/54,833.31 = 31,195.04/x
  3. Step 3: Cross multiply
    39,720.24x = 54,833.31 × 31,195.04
  4. Step 4: Simplify right side
    39,720.24x = 1,710,527,333.05
  5. Step 5: Solve for x
    x = 1,710,527,333.05/39,720.24
  6. Step 6: Final answer
    x = 43,064.38

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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.