Home / 31,159.09-43,000.44-17,012.84

Finding the Fourth Proportional to 31,159.09, 43,000.44 and 17,012.84

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Solution

The fourth proportional to 31,159.09, 43,000.44 and 17,012.84 is: 23,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.09 : 43,000.44 = 17,012.84 : x
  2. Step 2: Convert to fraction form
    31,159.09/43,000.44 = 17,012.84/x
  3. Step 3: Cross multiply
    31,159.09x = 43,000.44 × 17,012.84
  4. Step 4: Simplify right side
    31,159.09x = 731,559,605.65
  5. Step 5: Solve for x
    x = 731,559,605.65/31,159.09
  6. Step 6: Final answer
    x = 23,478.21

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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.