Home / 39,330.03-54,274.82-21,425.25

Finding the Fourth Proportional to 39,330.03, 54,274.82 and 21,425.25

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Solution

The fourth proportional to 39,330.03, 54,274.82 and 21,425.25 is: 29,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.03 : 54,274.82 = 21,425.25 : x
  2. Step 2: Convert to fraction form
    39,330.03/54,274.82 = 21,425.25/x
  3. Step 3: Cross multiply
    39,330.03x = 54,274.82 × 21,425.25
  4. Step 4: Simplify right side
    39,330.03x = 1,162,851,480.08
  5. Step 5: Solve for x
    x = 1,162,851,480.08/39,330.03
  6. Step 6: Final answer
    x = 29,566.50

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Double scale
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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.