Home / 29,128.48-40,184.70-18,364.88

Finding the Fourth Proportional to 29,128.48, 40,184.70 and 18,364.88

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Solution

The fourth proportional to 29,128.48, 40,184.70 and 18,364.88 is: 25,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.48 : 40,184.70 = 18,364.88 : x
  2. Step 2: Convert to fraction form
    29,128.48/40,184.70 = 18,364.88/x
  3. Step 3: Cross multiply
    29,128.48x = 40,184.70 × 18,364.88
  4. Step 4: Simplify right side
    29,128.48x = 737,987,193.34
  5. Step 5: Solve for x
    x = 737,987,193.34/29,128.48
  6. Step 6: Final answer
    x = 25,335.59

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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.