Home / 20,595.24-28,404.51-12,631.86

Finding the Fourth Proportional to 20,595.24, 28,404.51 and 12,631.86

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Solution

The fourth proportional to 20,595.24, 28,404.51 and 12,631.86 is: 17,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.24 : 28,404.51 = 12,631.86 : x
  2. Step 2: Convert to fraction form
    20,595.24/28,404.51 = 12,631.86/x
  3. Step 3: Cross multiply
    20,595.24x = 28,404.51 × 12,631.86
  4. Step 4: Simplify right side
    20,595.24x = 358,801,793.69
  5. Step 5: Solve for x
    x = 358,801,793.69/20,595.24
  6. Step 6: Final answer
    x = 17,421.59

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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.