Home / 28,621.96-42,924.20-19,794.02

Finding the Fourth Proportional to 28,621.96, 42,924.20 and 19,794.02

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Solution

The fourth proportional to 28,621.96, 42,924.20 and 19,794.02 is: 29,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.96 : 42,924.20 = 19,794.02 : x
  2. Step 2: Convert to fraction form
    28,621.96/42,924.20 = 19,794.02/x
  3. Step 3: Cross multiply
    28,621.96x = 42,924.20 × 19,794.02
  4. Step 4: Simplify right side
    28,621.96x = 849,642,521.87
  5. Step 5: Solve for x
    x = 849,642,521.87/28,621.96
  6. Step 6: Final answer
    x = 29,684.99

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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.