Home / 39,561.75-54,595.29-21,657.86

Finding the Fourth Proportional to 39,561.75, 54,595.29 and 21,657.86

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Solution

The fourth proportional to 39,561.75, 54,595.29 and 21,657.86 is: 29,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.75 : 54,595.29 = 21,657.86 : x
  2. Step 2: Convert to fraction form
    39,561.75/54,595.29 = 21,657.86/x
  3. Step 3: Cross multiply
    39,561.75x = 54,595.29 × 21,657.86
  4. Step 4: Simplify right side
    39,561.75x = 1,182,417,147.48
  5. Step 5: Solve for x
    x = 1,182,417,147.48/39,561.75
  6. Step 6: Final answer
    x = 29,887.89

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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.