Home / 23,137.56-31,929.85-12,527.20

Finding the Fourth Proportional to 23,137.56, 31,929.85 and 12,527.20

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Solution

The fourth proportional to 23,137.56, 31,929.85 and 12,527.20 is: 17,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.56 : 31,929.85 = 12,527.20 : x
  2. Step 2: Convert to fraction form
    23,137.56/31,929.85 = 12,527.20/x
  3. Step 3: Cross multiply
    23,137.56x = 31,929.85 × 12,527.20
  4. Step 4: Simplify right side
    23,137.56x = 399,991,616.92
  5. Step 5: Solve for x
    x = 399,991,616.92/23,137.56
  6. Step 6: Final answer
    x = 17,287.55

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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.