Home / 28,222.60-42,333.90-16,412.80

Finding the Fourth Proportional to 28,222.60, 42,333.90 and 16,412.80

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Solution

The fourth proportional to 28,222.60, 42,333.90 and 16,412.80 is: 24,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.60 : 42,333.90 = 16,412.80 : x
  2. Step 2: Convert to fraction form
    28,222.60/42,333.90 = 16,412.80/x
  3. Step 3: Cross multiply
    28,222.60x = 42,333.90 × 16,412.80
  4. Step 4: Simplify right side
    28,222.60x = 694,817,833.92
  5. Step 5: Solve for x
    x = 694,817,833.92/28,222.60
  6. Step 6: Final answer
    x = 24,619.20

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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.