Home / 23,172.11-31,977.27-12,963.02

Finding the Fourth Proportional to 23,172.11, 31,977.27 and 12,963.02

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Solution

The fourth proportional to 23,172.11, 31,977.27 and 12,963.02 is: 17,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.11 : 31,977.27 = 12,963.02 : x
  2. Step 2: Convert to fraction form
    23,172.11/31,977.27 = 12,963.02/x
  3. Step 3: Cross multiply
    23,172.11x = 31,977.27 × 12,963.02
  4. Step 4: Simplify right side
    23,172.11x = 414,521,830.67
  5. Step 5: Solve for x
    x = 414,521,830.67/23,172.11
  6. Step 6: Final answer
    x = 17,888.83

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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.