Home / 28,813.60-43,162.80-16,487.20

Finding the Fourth Proportional to 28,813.60, 43,162.80 and 16,487.20

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Solution

The fourth proportional to 28,813.60, 43,162.80 and 16,487.20 is: 24,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.60 : 43,162.80 = 16,487.20 : x
  2. Step 2: Convert to fraction form
    28,813.60/43,162.80 = 16,487.20/x
  3. Step 3: Cross multiply
    28,813.60x = 43,162.80 × 16,487.20
  4. Step 4: Simplify right side
    28,813.60x = 711,633,716.16
  5. Step 5: Solve for x
    x = 711,633,716.16/28,813.60
  6. Step 6: Final answer
    x = 24,697.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.