Home / 31,320.22-43,213.42-17,888.80

Finding the Fourth Proportional to 31,320.22, 43,213.42 and 17,888.80

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Solution

The fourth proportional to 31,320.22, 43,213.42 and 17,888.80 is: 24,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.22 : 43,213.42 = 17,888.80 : x
  2. Step 2: Convert to fraction form
    31,320.22/43,213.42 = 17,888.80/x
  3. Step 3: Cross multiply
    31,320.22x = 43,213.42 × 17,888.80
  4. Step 4: Simplify right side
    31,320.22x = 773,036,227.70
  5. Step 5: Solve for x
    x = 773,036,227.70/31,320.22
  6. Step 6: Final answer
    x = 24,681.70

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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.