Home / 19,022.08-28,530.96-5,172.16

Finding the Fourth Proportional to 19,022.08, 28,530.96 and 5,172.16

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Solution

The fourth proportional to 19,022.08, 28,530.96 and 5,172.16 is: 7,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,022.08 : 28,530.96 = 5,172.16 : x
  2. Step 2: Convert to fraction form
    19,022.08/28,530.96 = 5,172.16/x
  3. Step 3: Cross multiply
    19,022.08x = 28,530.96 × 5,172.16
  4. Step 4: Simplify right side
    19,022.08x = 147,566,690.07
  5. Step 5: Solve for x
    x = 147,566,690.07/19,022.08
  6. Step 6: Final answer
    x = 7,757.65

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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.