Home / 23,153.85-31,952.34-12,543.39

Finding the Fourth Proportional to 23,153.85, 31,952.34 and 12,543.39

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Solution

The fourth proportional to 23,153.85, 31,952.34 and 12,543.39 is: 17,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,153.85 : 31,952.34 = 12,543.39 : x
  2. Step 2: Convert to fraction form
    23,153.85/31,952.34 = 12,543.39/x
  3. Step 3: Cross multiply
    23,153.85x = 31,952.34 × 12,543.39
  4. Step 4: Simplify right side
    23,153.85x = 400,790,662.03
  5. Step 5: Solve for x
    x = 400,790,662.03/23,153.85
  6. Step 6: Final answer
    x = 17,309.89

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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.