Home / 31,442.78-47,164.20-7,750.33

Finding the Fourth Proportional to 31,442.78, 47,164.20 and 7,750.33

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Solution

The fourth proportional to 31,442.78, 47,164.20 and 7,750.33 is: 11,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.78 : 47,164.20 = 7,750.33 : x
  2. Step 2: Convert to fraction form
    31,442.78/47,164.20 = 7,750.33/x
  3. Step 3: Cross multiply
    31,442.78x = 47,164.20 × 7,750.33
  4. Step 4: Simplify right side
    31,442.78x = 365,538,114.19
  5. Step 5: Solve for x
    x = 365,538,114.19/31,442.78
  6. Step 6: Final answer
    x = 11,625.50

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Similar ratio
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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.