Home / 19,330.25-28,995.64-5,479.25

Finding the Fourth Proportional to 19,330.25, 28,995.64 and 5,479.25

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Solution

The fourth proportional to 19,330.25, 28,995.64 and 5,479.25 is: 8,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.25 : 28,995.64 = 5,479.25 : x
  2. Step 2: Convert to fraction form
    19,330.25/28,995.64 = 5,479.25/x
  3. Step 3: Cross multiply
    19,330.25x = 28,995.64 × 5,479.25
  4. Step 4: Simplify right side
    19,330.25x = 158,874,201.79
  5. Step 5: Solve for x
    x = 158,874,201.79/19,330.25
  6. Step 6: Final answer
    x = 8,218.94

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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.