Home / 31,188.90-43,041.30-17,042.64

Finding the Fourth Proportional to 31,188.90, 43,041.30 and 17,042.64

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Solution

The fourth proportional to 31,188.90, 43,041.30 and 17,042.64 is: 23,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.90 : 43,041.30 = 17,042.64 : x
  2. Step 2: Convert to fraction form
    31,188.90/43,041.30 = 17,042.64/x
  3. Step 3: Cross multiply
    31,188.90x = 43,041.30 × 17,042.64
  4. Step 4: Simplify right side
    31,188.90x = 733,537,381.03
  5. Step 5: Solve for x
    x = 733,537,381.03/31,188.90
  6. Step 6: Final answer
    x = 23,519.18

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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.