Home / 28,305.60-39,042.72-18,246.84

Finding the Fourth Proportional to 28,305.60, 39,042.72 and 18,246.84

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Solution

The fourth proportional to 28,305.60, 39,042.72 and 18,246.84 is: 25,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.60 : 39,042.72 = 18,246.84 : x
  2. Step 2: Convert to fraction form
    28,305.60/39,042.72 = 18,246.84/x
  3. Step 3: Cross multiply
    28,305.60x = 39,042.72 × 18,246.84
  4. Step 4: Simplify right side
    28,305.60x = 712,406,265.00
  5. Step 5: Solve for x
    x = 712,406,265.00/28,305.60
  6. Step 6: Final answer
    x = 25,168.39

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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.