Home / 29,128.24-40,184.35-18,364.63

Finding the Fourth Proportional to 29,128.24, 40,184.35 and 18,364.63

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Solution

The fourth proportional to 29,128.24, 40,184.35 and 18,364.63 is: 25,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.24 : 40,184.35 = 18,364.63 : x
  2. Step 2: Convert to fraction form
    29,128.24/40,184.35 = 18,364.63/x
  3. Step 3: Cross multiply
    29,128.24x = 40,184.35 × 18,364.63
  4. Step 4: Simplify right side
    29,128.24x = 737,970,719.54
  5. Step 5: Solve for x
    x = 737,970,719.54/29,128.24
  6. Step 6: Final answer
    x = 25,335.23

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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.