Home / 20,366.24-28,037.76-18,266.72

Finding the Fourth Proportional to 20,366.24, 28,037.76 and 18,266.72

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Solution

The fourth proportional to 20,366.24, 28,037.76 and 18,266.72 is: 25,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.24 : 28,037.76 = 18,266.72 : x
  2. Step 2: Convert to fraction form
    20,366.24/28,037.76 = 18,266.72/x
  3. Step 3: Cross multiply
    20,366.24x = 28,037.76 × 18,266.72
  4. Step 4: Simplify right side
    20,366.24x = 512,157,911.35
  5. Step 5: Solve for x
    x = 512,157,911.35/20,366.24
  6. Step 6: Final answer
    x = 25,147.40

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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.