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Finding the Fourth Proportional to 32,987.94, 49,418.12 and 20,512.94

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Solution

The fourth proportional to 32,987.94, 49,418.12 and 20,512.94 is: 30,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,987.94 : 49,418.12 = 20,512.94 : x
  2. Step 2: Convert to fraction form
    32,987.94/49,418.12 = 20,512.94/x
  3. Step 3: Cross multiply
    32,987.94x = 49,418.12 × 20,512.94
  4. Step 4: Simplify right side
    32,987.94x = 1,013,710,580.82
  5. Step 5: Solve for x
    x = 1,013,710,580.82/32,987.94
  6. Step 6: Final answer
    x = 30,729.73

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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.