Home / 23,154.78-31,954.85-13,083.65

Finding the Fourth Proportional to 23,154.78, 31,954.85 and 13,083.65

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Solution

The fourth proportional to 23,154.78, 31,954.85 and 13,083.65 is: 18,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,154.78 : 31,954.85 = 13,083.65 : x
  2. Step 2: Convert to fraction form
    23,154.78/31,954.85 = 13,083.65/x
  3. Step 3: Cross multiply
    23,154.78x = 31,954.85 × 13,083.65
  4. Step 4: Simplify right side
    23,154.78x = 418,085,848.01
  5. Step 5: Solve for x
    x = 418,085,848.01/23,154.78
  6. Step 6: Final answer
    x = 18,056.14

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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.