Home / 29,478.20-40,667.86-18,144.26

Finding the Fourth Proportional to 29,478.20, 40,667.86 and 18,144.26

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Solution

The fourth proportional to 29,478.20, 40,667.86 and 18,144.26 is: 25,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,478.20 : 40,667.86 = 18,144.26 : x
  2. Step 2: Convert to fraction form
    29,478.20/40,667.86 = 18,144.26/x
  3. Step 3: Cross multiply
    29,478.20x = 40,667.86 × 18,144.26
  4. Step 4: Simplify right side
    29,478.20x = 737,888,225.48
  5. Step 5: Solve for x
    x = 737,888,225.48/29,478.20
  6. Step 6: Final answer
    x = 25,031.66

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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.