Home / 29,439.92-40,638.86-18,114.05

Finding the Fourth Proportional to 29,439.92, 40,638.86 and 18,114.05

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Solution

The fourth proportional to 29,439.92, 40,638.86 and 18,114.05 is: 25,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,439.92 : 40,638.86 = 18,114.05 : x
  2. Step 2: Convert to fraction form
    29,439.92/40,638.86 = 18,114.05/x
  3. Step 3: Cross multiply
    29,439.92x = 40,638.86 × 18,114.05
  4. Step 4: Simplify right side
    29,439.92x = 736,134,048.22
  5. Step 5: Solve for x
    x = 736,134,048.22/29,439.92
  6. Step 6: Final answer
    x = 25,004.63

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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.