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Finding the Fourth Proportional to 27,151.30, 40,701.88 and 18,835.24

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Solution

The fourth proportional to 27,151.30, 40,701.88 and 18,835.24 is: 28,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.30 : 40,701.88 = 18,835.24 : x
  2. Step 2: Convert to fraction form
    27,151.30/40,701.88 = 18,835.24/x
  3. Step 3: Cross multiply
    27,151.30x = 40,701.88 × 18,835.24
  4. Step 4: Simplify right side
    27,151.30x = 766,629,678.25
  5. Step 5: Solve for x
    x = 766,629,678.25/27,151.30
  6. Step 6: Final answer
    x = 28,235.47

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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.