Home / 39,363.07-54,320.73-21,458.02

Finding the Fourth Proportional to 39,363.07, 54,320.73 and 21,458.02

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Solution

The fourth proportional to 39,363.07, 54,320.73 and 21,458.02 is: 29,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,363.07 : 54,320.73 = 21,458.02 : x
  2. Step 2: Convert to fraction form
    39,363.07/54,320.73 = 21,458.02/x
  3. Step 3: Cross multiply
    39,363.07x = 54,320.73 × 21,458.02
  4. Step 4: Simplify right side
    39,363.07x = 1,165,615,310.75
  5. Step 5: Solve for x
    x = 1,165,615,310.75/39,363.07
  6. Step 6: Final answer
    x = 29,611.90

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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.