Home / 39,404.19-54,377.04-21,498.75

Finding the Fourth Proportional to 39,404.19, 54,377.04 and 21,498.75

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Solution

The fourth proportional to 39,404.19, 54,377.04 and 21,498.75 is: 29,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,404.19 : 54,377.04 = 21,498.75 : x
  2. Step 2: Convert to fraction form
    39,404.19/54,377.04 = 21,498.75/x
  3. Step 3: Cross multiply
    39,404.19x = 54,377.04 × 21,498.75
  4. Step 4: Simplify right side
    39,404.19x = 1,169,038,388.70
  5. Step 5: Solve for x
    x = 1,169,038,388.70/39,404.19
  6. Step 6: Final answer
    x = 29,667.87

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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.