Home / 23,165.40-31,959.62-15,212.04

Finding the Fourth Proportional to 23,165.40, 31,959.62 and 15,212.04

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Solution

The fourth proportional to 23,165.40, 31,959.62 and 15,212.04 is: 20,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.40 : 31,959.62 = 15,212.04 : x
  2. Step 2: Convert to fraction form
    23,165.40/31,959.62 = 15,212.04/x
  3. Step 3: Cross multiply
    23,165.40x = 31,959.62 × 15,212.04
  4. Step 4: Simplify right side
    23,165.40x = 486,171,017.82
  5. Step 5: Solve for x
    x = 486,171,017.82/23,165.40
  6. Step 6: Final answer
    x = 20,986.95

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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.