Home / 28,017.60-38,666.40-16,084.80

Finding the Fourth Proportional to 28,017.60, 38,666.40 and 16,084.80

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Solution

The fourth proportional to 28,017.60, 38,666.40 and 16,084.80 is: 22,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.60 : 38,666.40 = 16,084.80 : x
  2. Step 2: Convert to fraction form
    28,017.60/38,666.40 = 16,084.80/x
  3. Step 3: Cross multiply
    28,017.60x = 38,666.40 × 16,084.80
  4. Step 4: Simplify right side
    28,017.60x = 621,941,310.72
  5. Step 5: Solve for x
    x = 621,941,310.72/28,017.60
  6. Step 6: Final answer
    x = 22,198.24

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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.