Home / 28,007.36-42,011.04-19,215.62

Finding the Fourth Proportional to 28,007.36, 42,011.04 and 19,215.62

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Solution

The fourth proportional to 28,007.36, 42,011.04 and 19,215.62 is: 28,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.36 : 42,011.04 = 19,215.62 : x
  2. Step 2: Convert to fraction form
    28,007.36/42,011.04 = 19,215.62/x
  3. Step 3: Cross multiply
    28,007.36x = 42,011.04 × 19,215.62
  4. Step 4: Simplify right side
    28,007.36x = 807,268,180.44
  5. Step 5: Solve for x
    x = 807,268,180.44/28,007.36
  6. Step 6: Final answer
    x = 28,823.43

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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.