Home / 22,971.20-31,699.52-12,901.44

Finding the Fourth Proportional to 22,971.20, 31,699.52 and 12,901.44

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Solution

The fourth proportional to 22,971.20, 31,699.52 and 12,901.44 is: 17,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.20 : 31,699.52 = 12,901.44 : x
  2. Step 2: Convert to fraction form
    22,971.20/31,699.52 = 12,901.44/x
  3. Step 3: Cross multiply
    22,971.20x = 31,699.52 × 12,901.44
  4. Step 4: Simplify right side
    22,971.20x = 408,969,455.31
  5. Step 5: Solve for x
    x = 408,969,455.31/22,971.20
  6. Step 6: Final answer
    x = 17,803.57

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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.