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Finding the Fourth Proportional to 27,312.29, 40,968.43 and 15,617.31

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Solution

The fourth proportional to 27,312.29, 40,968.43 and 15,617.31 is: 23,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.29 : 40,968.43 = 15,617.31 : x
  2. Step 2: Convert to fraction form
    27,312.29/40,968.43 = 15,617.31/x
  3. Step 3: Cross multiply
    27,312.29x = 40,968.43 × 15,617.31
  4. Step 4: Simplify right side
    27,312.29x = 639,816,427.64
  5. Step 5: Solve for x
    x = 639,816,427.64/27,312.29
  6. Step 6: Final answer
    x = 23,425.96

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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.