Home / 39,758.52-54,867.18-21,609.24

Finding the Fourth Proportional to 39,758.52, 54,867.18 and 21,609.24

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Solution

The fourth proportional to 39,758.52, 54,867.18 and 21,609.24 is: 29,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,758.52 : 54,867.18 = 21,609.24 : x
  2. Step 2: Convert to fraction form
    39,758.52/54,867.18 = 21,609.24/x
  3. Step 3: Cross multiply
    39,758.52x = 54,867.18 × 21,609.24
  4. Step 4: Simplify right side
    39,758.52x = 1,185,638,060.74
  5. Step 5: Solve for x
    x = 1,185,638,060.74/39,758.52
  6. Step 6: Final answer
    x = 29,820.98

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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.