Home / 28,001.36-42,002.04-19,209.62

Finding the Fourth Proportional to 28,001.36, 42,002.04 and 19,209.62

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Solution

The fourth proportional to 28,001.36, 42,002.04 and 19,209.62 is: 28,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.36 : 42,002.04 = 19,209.62 : x
  2. Step 2: Convert to fraction form
    28,001.36/42,002.04 = 19,209.62/x
  3. Step 3: Cross multiply
    28,001.36x = 42,002.04 × 19,209.62
  4. Step 4: Simplify right side
    28,001.36x = 806,843,227.62
  5. Step 5: Solve for x
    x = 806,843,227.62/28,001.36
  6. Step 6: Final answer
    x = 28,814.43

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Similar ratio
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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.