Home / 34,902.15-48,164.40-18,987

Finding the Fourth Proportional to 34,902.15, 48,164.40 and 18,987

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Solution

The fourth proportional to 34,902.15, 48,164.40 and 18,987 is: 26,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,902.15 : 48,164.40 = 18,987 : x
  2. Step 2: Convert to fraction form
    34,902.15/48,164.40 = 18,987/x
  3. Step 3: Cross multiply
    34,902.15x = 48,164.40 × 18,987
  4. Step 4: Simplify right side
    34,902.15x = 914,497,462.80
  5. Step 5: Solve for x
    x = 914,497,462.80/34,902.15
  6. Step 6: Final answer
    x = 26,201.75

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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.