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Finding the Fourth Proportional to 32,387, 44,713.50 and 21,228.44

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Solution

The fourth proportional to 32,387, 44,713.50 and 21,228.44 is: 29,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,387 : 44,713.50 = 21,228.44 : x
  2. Step 2: Convert to fraction form
    32,387/44,713.50 = 21,228.44/x
  3. Step 3: Cross multiply
    32,387x = 44,713.50 × 21,228.44
  4. Step 4: Simplify right side
    32,387x = 949,197,851.94
  5. Step 5: Solve for x
    x = 949,197,851.94/32,387
  6. Step 6: Final answer
    x = 29,307.99

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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.