Home / 23,159.90-31,960.77-12,549.55

Finding the Fourth Proportional to 23,159.90, 31,960.77 and 12,549.55

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Solution

The fourth proportional to 23,159.90, 31,960.77 and 12,549.55 is: 17,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,159.90 : 31,960.77 = 12,549.55 : x
  2. Step 2: Convert to fraction form
    23,159.90/31,960.77 = 12,549.55/x
  3. Step 3: Cross multiply
    23,159.90x = 31,960.77 × 12,549.55
  4. Step 4: Simplify right side
    23,159.90x = 401,093,154.19
  5. Step 5: Solve for x
    x = 401,093,154.19/23,159.90
  6. Step 6: Final answer
    x = 17,318.44

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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.