Home / 23,107.79-31,888.76-12,497.42

Finding the Fourth Proportional to 23,107.79, 31,888.76 and 12,497.42

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Solution

The fourth proportional to 23,107.79, 31,888.76 and 12,497.42 is: 17,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,107.79 : 31,888.76 = 12,497.42 : x
  2. Step 2: Convert to fraction form
    23,107.79/31,888.76 = 12,497.42/x
  3. Step 3: Cross multiply
    23,107.79x = 31,888.76 × 12,497.42
  4. Step 4: Simplify right side
    23,107.79x = 398,527,244.23
  5. Step 5: Solve for x
    x = 398,527,244.23/23,107.79
  6. Step 6: Final answer
    x = 17,246.44

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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.