Home / 23,060.28-31,823.38-12,986.72

Finding the Fourth Proportional to 23,060.28, 31,823.38 and 12,986.72

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Solution

The fourth proportional to 23,060.28, 31,823.38 and 12,986.72 is: 17,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,060.28 : 31,823.38 = 12,986.72 : x
  2. Step 2: Convert to fraction form
    23,060.28/31,823.38 = 12,986.72/x
  3. Step 3: Cross multiply
    23,060.28x = 31,823.38 × 12,986.72
  4. Step 4: Simplify right side
    23,060.28x = 413,281,325.51
  5. Step 5: Solve for x
    x = 413,281,325.51/23,060.28
  6. Step 6: Final answer
    x = 17,921.78

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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.