Home / 18,633.28-25,720.32-18,080.32

Finding the Fourth Proportional to 18,633.28, 25,720.32 and 18,080.32

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Solution

The fourth proportional to 18,633.28, 25,720.32 and 18,080.32 is: 24,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.28 : 25,720.32 = 18,080.32 : x
  2. Step 2: Convert to fraction form
    18,633.28/25,720.32 = 18,080.32/x
  3. Step 3: Cross multiply
    18,633.28x = 25,720.32 × 18,080.32
  4. Step 4: Simplify right side
    18,633.28x = 465,031,616.10
  5. Step 5: Solve for x
    x = 465,031,616.10/18,633.28
  6. Step 6: Final answer
    x = 24,957.05

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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.