Home / 25,918.98-38,951.60-15,390.83

Finding the Fourth Proportional to 25,918.98, 38,951.60 and 15,390.83

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Solution

The fourth proportional to 25,918.98, 38,951.60 and 15,390.83 is: 23,129.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,918.98 : 38,951.60 = 15,390.83 : x
  2. Step 2: Convert to fraction form
    25,918.98/38,951.60 = 15,390.83/x
  3. Step 3: Cross multiply
    25,918.98x = 38,951.60 × 15,390.83
  4. Step 4: Simplify right side
    25,918.98x = 599,497,182.12
  5. Step 5: Solve for x
    x = 599,497,182.12/25,918.98
  6. Step 6: Final answer
    x = 23,129.66

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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.