Home / 39,830.17-54,965.21-21,924.80

Finding the Fourth Proportional to 39,830.17, 54,965.21 and 21,924.80

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Solution

The fourth proportional to 39,830.17, 54,965.21 and 21,924.80 is: 30,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.17 : 54,965.21 = 21,924.80 : x
  2. Step 2: Convert to fraction form
    39,830.17/54,965.21 = 21,924.80/x
  3. Step 3: Cross multiply
    39,830.17x = 54,965.21 × 21,924.80
  4. Step 4: Simplify right side
    39,830.17x = 1,205,101,236.21
  5. Step 5: Solve for x
    x = 1,205,101,236.21/39,830.17
  6. Step 6: Final answer
    x = 30,255.99

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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.