Home / 22,285.60-30,756.72-12,854.48

Finding the Fourth Proportional to 22,285.60, 30,756.72 and 12,854.48

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Solution

The fourth proportional to 22,285.60, 30,756.72 and 12,854.48 is: 17,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,285.60 : 30,756.72 = 12,854.48 : x
  2. Step 2: Convert to fraction form
    22,285.60/30,756.72 = 12,854.48/x
  3. Step 3: Cross multiply
    22,285.60x = 30,756.72 × 12,854.48
  4. Step 4: Simplify right side
    22,285.60x = 395,361,642.11
  5. Step 5: Solve for x
    x = 395,361,642.11/22,285.60
  6. Step 6: Final answer
    x = 17,740.68

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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.