Home / 20,595.10-28,400.40-18,319.24

Finding the Fourth Proportional to 20,595.10, 28,400.40 and 18,319.24

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Solution

The fourth proportional to 20,595.10, 28,400.40 and 18,319.24 is: 25,262.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.10 : 28,400.40 = 18,319.24 : x
  2. Step 2: Convert to fraction form
    20,595.10/28,400.40 = 18,319.24/x
  3. Step 3: Cross multiply
    20,595.10x = 28,400.40 × 18,319.24
  4. Step 4: Simplify right side
    20,595.10x = 520,273,743.70
  5. Step 5: Solve for x
    x = 520,273,743.70/20,595.10
  6. Step 6: Final answer
    x = 25,262.02

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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.