Home / 20,624.86-28,462.38-12,667.06

Finding the Fourth Proportional to 20,624.86, 28,462.38 and 12,667.06

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Solution

The fourth proportional to 20,624.86, 28,462.38 and 12,667.06 is: 17,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.86 : 28,462.38 = 12,667.06 : x
  2. Step 2: Convert to fraction form
    20,624.86/28,462.38 = 12,667.06/x
  3. Step 3: Cross multiply
    20,624.86x = 28,462.38 × 12,667.06
  4. Step 4: Simplify right side
    20,624.86x = 360,534,675.20
  5. Step 5: Solve for x
    x = 360,534,675.20/20,624.86
  6. Step 6: Final answer
    x = 17,480.59

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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.