Home / 28,036.54-42,007.20-16,919.87

Finding the Fourth Proportional to 28,036.54, 42,007.20 and 16,919.87

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Solution

The fourth proportional to 28,036.54, 42,007.20 and 16,919.87 is: 25,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.54 : 42,007.20 = 16,919.87 : x
  2. Step 2: Convert to fraction form
    28,036.54/42,007.20 = 16,919.87/x
  3. Step 3: Cross multiply
    28,036.54x = 42,007.20 × 16,919.87
  4. Step 4: Simplify right side
    28,036.54x = 710,756,468.08
  5. Step 5: Solve for x
    x = 710,756,468.08/28,036.54
  6. Step 6: Final answer
    x = 25,351.08

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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.