Home / 29,112.80-40,188.28-18,367.34

Finding the Fourth Proportional to 29,112.80, 40,188.28 and 18,367.34

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Solution

The fourth proportional to 29,112.80, 40,188.28 and 18,367.34 is: 25,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.80 : 40,188.28 = 18,367.34 : x
  2. Step 2: Convert to fraction form
    29,112.80/40,188.28 = 18,367.34/x
  3. Step 3: Cross multiply
    29,112.80x = 40,188.28 × 18,367.34
  4. Step 4: Simplify right side
    29,112.80x = 738,151,802.78
  5. Step 5: Solve for x
    x = 738,151,802.78/29,112.80
  6. Step 6: Final answer
    x = 25,354.89

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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.