Home / 39,564.75-54,599.35-21,659.70

Finding the Fourth Proportional to 39,564.75, 54,599.35 and 21,659.70

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Solution

The fourth proportional to 39,564.75, 54,599.35 and 21,659.70 is: 29,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,564.75 : 54,599.35 = 21,659.70 : x
  2. Step 2: Convert to fraction form
    39,564.75/54,599.35 = 21,659.70/x
  3. Step 3: Cross multiply
    39,564.75x = 54,599.35 × 21,659.70
  4. Step 4: Simplify right side
    39,564.75x = 1,182,605,432.90
  5. Step 5: Solve for x
    x = 1,182,605,432.90/39,564.75
  6. Step 6: Final answer
    x = 29,890.38

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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.