Home / 23,165.09-31,954.61-13,730.21

Finding the Fourth Proportional to 23,165.09, 31,954.61 and 13,730.21

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Solution

The fourth proportional to 23,165.09, 31,954.61 and 13,730.21 is: 18,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.09 : 31,954.61 = 13,730.21 : x
  2. Step 2: Convert to fraction form
    23,165.09/31,954.61 = 13,730.21/x
  3. Step 3: Cross multiply
    23,165.09x = 31,954.61 × 13,730.21
  4. Step 4: Simplify right side
    23,165.09x = 438,743,437.12
  5. Step 5: Solve for x
    x = 438,743,437.12/23,165.09
  6. Step 6: Final answer
    x = 18,939.85

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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.