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Finding the Fourth Proportional to 27,167.80, 40,727.40 and 17,812.30

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Solution

The fourth proportional to 27,167.80, 40,727.40 and 17,812.30 is: 26,702.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,167.80 : 40,727.40 = 17,812.30 : x
  2. Step 2: Convert to fraction form
    27,167.80/40,727.40 = 17,812.30/x
  3. Step 3: Cross multiply
    27,167.80x = 40,727.40 × 17,812.30
  4. Step 4: Simplify right side
    27,167.80x = 725,448,667.02
  5. Step 5: Solve for x
    x = 725,448,667.02/27,167.80
  6. Step 6: Final answer
    x = 26,702.52

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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.