Home / 31,315.24-43,203.96-17,876.80

Finding the Fourth Proportional to 31,315.24, 43,203.96 and 17,876.80

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Solution

The fourth proportional to 31,315.24, 43,203.96 and 17,876.80 is: 24,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.24 : 43,203.96 = 17,876.80 : x
  2. Step 2: Convert to fraction form
    31,315.24/43,203.96 = 17,876.80/x
  3. Step 3: Cross multiply
    31,315.24x = 43,203.96 × 17,876.80
  4. Step 4: Simplify right side
    31,315.24x = 772,348,552.13
  5. Step 5: Solve for x
    x = 772,348,552.13/31,315.24
  6. Step 6: Final answer
    x = 24,663.66

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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.