Home / 25,839.60-38,663.40-18,927.60

Finding the Fourth Proportional to 25,839.60, 38,663.40 and 18,927.60

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Solution

The fourth proportional to 25,839.60, 38,663.40 and 18,927.60 is: 28,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.60 : 38,663.40 = 18,927.60 : x
  2. Step 2: Convert to fraction form
    25,839.60/38,663.40 = 18,927.60/x
  3. Step 3: Cross multiply
    25,839.60x = 38,663.40 × 18,927.60
  4. Step 4: Simplify right side
    25,839.60x = 731,805,369.84
  5. Step 5: Solve for x
    x = 731,805,369.84/25,839.60
  6. Step 6: Final answer
    x = 28,321.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.