Home / 31,189.50-43,041.51-17,042.45

Finding the Fourth Proportional to 31,189.50, 43,041.51 and 17,042.45

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Solution

The fourth proportional to 31,189.50, 43,041.51 and 17,042.45 is: 23,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.50 : 43,041.51 = 17,042.45 : x
  2. Step 2: Convert to fraction form
    31,189.50/43,041.51 = 17,042.45/x
  3. Step 3: Cross multiply
    31,189.50x = 43,041.51 × 17,042.45
  4. Step 4: Simplify right side
    31,189.50x = 733,532,566.89
  5. Step 5: Solve for x
    x = 733,532,566.89/31,189.50
  6. Step 6: Final answer
    x = 23,518.57

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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.