Home / 22,615.26-31,208.73-12,543.48

Finding the Fourth Proportional to 22,615.26, 31,208.73 and 12,543.48

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Solution

The fourth proportional to 22,615.26, 31,208.73 and 12,543.48 is: 17,309.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.26 : 31,208.73 = 12,543.48 : x
  2. Step 2: Convert to fraction form
    22,615.26/31,208.73 = 12,543.48/x
  3. Step 3: Cross multiply
    22,615.26x = 31,208.73 × 12,543.48
  4. Step 4: Simplify right side
    22,615.26x = 391,466,080.58
  5. Step 5: Solve for x
    x = 391,466,080.58/22,615.26
  6. Step 6: Final answer
    x = 17,309.82

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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.