Home / 23,020.64-31,769.43-12,949.55

Finding the Fourth Proportional to 23,020.64, 31,769.43 and 12,949.55

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Solution

The fourth proportional to 23,020.64, 31,769.43 and 12,949.55 is: 17,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.64 : 31,769.43 = 12,949.55 : x
  2. Step 2: Convert to fraction form
    23,020.64/31,769.43 = 12,949.55/x
  3. Step 3: Cross multiply
    23,020.64x = 31,769.43 × 12,949.55
  4. Step 4: Simplify right side
    23,020.64x = 411,399,822.26
  5. Step 5: Solve for x
    x = 411,399,822.26/23,020.64
  6. Step 6: Final answer
    x = 17,870.91

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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.