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Finding the Fourth Proportional to 43,197, 59,637.78 and 28,318.92

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Solution

The fourth proportional to 43,197, 59,637.78 and 28,318.92 is: 39,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,197 : 59,637.78 = 28,318.92 : x
  2. Step 2: Convert to fraction form
    43,197/59,637.78 = 28,318.92/x
  3. Step 3: Cross multiply
    43,197x = 59,637.78 × 28,318.92
  4. Step 4: Simplify right side
    43,197x = 1,688,877,520.80
  5. Step 5: Solve for x
    x = 1,688,877,520.80/43,197
  6. Step 6: Final answer
    x = 39,097.10

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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.