Home / 28,470.40-42,705.60-16,796.80

Finding the Fourth Proportional to 28,470.40, 42,705.60 and 16,796.80

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Solution

The fourth proportional to 28,470.40, 42,705.60 and 16,796.80 is: 25,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.40 : 42,705.60 = 16,796.80 : x
  2. Step 2: Convert to fraction form
    28,470.40/42,705.60 = 16,796.80/x
  3. Step 3: Cross multiply
    28,470.40x = 42,705.60 × 16,796.80
  4. Step 4: Simplify right side
    28,470.40x = 717,317,422.08
  5. Step 5: Solve for x
    x = 717,317,422.08/28,470.40
  6. Step 6: Final answer
    x = 25,195.20

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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.