Home / 17,042.79-23,510.80-10,991.43

Finding the Fourth Proportional to 17,042.79, 23,510.80 and 10,991.43

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Solution

The fourth proportional to 17,042.79, 23,510.80 and 10,991.43 is: 15,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,042.79 : 23,510.80 = 10,991.43 : x
  2. Step 2: Convert to fraction form
    17,042.79/23,510.80 = 10,991.43/x
  3. Step 3: Cross multiply
    17,042.79x = 23,510.80 × 10,991.43
  4. Step 4: Simplify right side
    17,042.79x = 258,417,312.44
  5. Step 5: Solve for x
    x = 258,417,312.44/17,042.79
  6. Step 6: Final answer
    x = 15,162.85

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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.