Home / 29,290.08-40,420.29-18,685.83

Finding the Fourth Proportional to 29,290.08, 40,420.29 and 18,685.83

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Solution

The fourth proportional to 29,290.08, 40,420.29 and 18,685.83 is: 25,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.08 : 40,420.29 = 18,685.83 : x
  2. Step 2: Convert to fraction form
    29,290.08/40,420.29 = 18,685.83/x
  3. Step 3: Cross multiply
    29,290.08x = 40,420.29 × 18,685.83
  4. Step 4: Simplify right side
    29,290.08x = 755,286,667.49
  5. Step 5: Solve for x
    x = 755,286,667.49/29,290.08
  6. Step 6: Final answer
    x = 25,786.43

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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.