Home / 31,160.45-43,001.87-17,012.99

Finding the Fourth Proportional to 31,160.45, 43,001.87 and 17,012.99

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Solution

The fourth proportional to 31,160.45, 43,001.87 and 17,012.99 is: 23,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,160.45 : 43,001.87 = 17,012.99 : x
  2. Step 2: Convert to fraction form
    31,160.45/43,001.87 = 17,012.99/x
  3. Step 3: Cross multiply
    31,160.45x = 43,001.87 × 17,012.99
  4. Step 4: Simplify right side
    31,160.45x = 731,590,084.22
  5. Step 5: Solve for x
    x = 731,590,084.22/31,160.45
  6. Step 6: Final answer
    x = 23,478.17

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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.