Home / 39,301.88-54,236.50-21,397.01

Finding the Fourth Proportional to 39,301.88, 54,236.50 and 21,397.01

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Solution

The fourth proportional to 39,301.88, 54,236.50 and 21,397.01 is: 29,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,301.88 : 54,236.50 = 21,397.01 : x
  2. Step 2: Convert to fraction form
    39,301.88/54,236.50 = 21,397.01/x
  3. Step 3: Cross multiply
    39,301.88x = 54,236.50 × 21,397.01
  4. Step 4: Simplify right side
    39,301.88x = 1,160,498,608.19
  5. Step 5: Solve for x
    x = 1,160,498,608.19/39,301.88
  6. Step 6: Final answer
    x = 29,527.82

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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.