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Finding the Fourth Proportional to 32,575.95, 44,959.64 and 20,640.40

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Solution

The fourth proportional to 32,575.95, 44,959.64 and 20,640.40 is: 28,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,575.95 : 44,959.64 = 20,640.40 : x
  2. Step 2: Convert to fraction form
    32,575.95/44,959.64 = 20,640.40/x
  3. Step 3: Cross multiply
    32,575.95x = 44,959.64 × 20,640.40
  4. Step 4: Simplify right side
    32,575.95x = 927,984,737.85
  5. Step 5: Solve for x
    x = 927,984,737.85/32,575.95
  6. Step 6: Final answer
    x = 28,486.81

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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.