Home / 31,810.13-43,899.80-17,663.88

Finding the Fourth Proportional to 31,810.13, 43,899.80 and 17,663.88

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Solution

The fourth proportional to 31,810.13, 43,899.80 and 17,663.88 is: 24,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.13 : 43,899.80 = 17,663.88 : x
  2. Step 2: Convert to fraction form
    31,810.13/43,899.80 = 17,663.88/x
  3. Step 3: Cross multiply
    31,810.13x = 43,899.80 × 17,663.88
  4. Step 4: Simplify right side
    31,810.13x = 775,440,710.90
  5. Step 5: Solve for x
    x = 775,440,710.90/31,810.13
  6. Step 6: Final answer
    x = 24,377.17

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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.