Home / 20,700.18-28,567.26-11,747.52

Finding the Fourth Proportional to 20,700.18, 28,567.26 and 11,747.52

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Solution

The fourth proportional to 20,700.18, 28,567.26 and 11,747.52 is: 16,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.18 : 28,567.26 = 11,747.52 : x
  2. Step 2: Convert to fraction form
    20,700.18/28,567.26 = 11,747.52/x
  3. Step 3: Cross multiply
    20,700.18x = 28,567.26 × 11,747.52
  4. Step 4: Simplify right side
    20,700.18x = 335,594,458.20
  5. Step 5: Solve for x
    x = 335,594,458.20/20,700.18
  6. Step 6: Final answer
    x = 16,212.15

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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.