Home / 34,887.91-48,145.80-18,972.61

Finding the Fourth Proportional to 34,887.91, 48,145.80 and 18,972.61

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Solution

The fourth proportional to 34,887.91, 48,145.80 and 18,972.61 is: 26,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,887.91 : 48,145.80 = 18,972.61 : x
  2. Step 2: Convert to fraction form
    34,887.91/48,145.80 = 18,972.61/x
  3. Step 3: Cross multiply
    34,887.91x = 48,145.80 × 18,972.61
  4. Step 4: Simplify right side
    34,887.91x = 913,451,486.54
  5. Step 5: Solve for x
    x = 913,451,486.54/34,887.91
  6. Step 6: Final answer
    x = 26,182.47

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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.