Home / 20,608.41-28,438.84-11,176.77

Finding the Fourth Proportional to 20,608.41, 28,438.84 and 11,176.77

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Solution

The fourth proportional to 20,608.41, 28,438.84 and 11,176.77 is: 15,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.41 : 28,438.84 = 11,176.77 : x
  2. Step 2: Convert to fraction form
    20,608.41/28,438.84 = 11,176.77/x
  3. Step 3: Cross multiply
    20,608.41x = 28,438.84 × 11,176.77
  4. Step 4: Simplify right side
    20,608.41x = 317,854,203.61
  5. Step 5: Solve for x
    x = 317,854,203.61/20,608.41
  6. Step 6: Final answer
    x = 15,423.52

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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.