Home / 19,282.24-28,920.80-5,432.32

Finding the Fourth Proportional to 19,282.24, 28,920.80 and 5,432.32

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Solution

The fourth proportional to 19,282.24, 28,920.80 and 5,432.32 is: 8,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.24 : 28,920.80 = 5,432.32 : x
  2. Step 2: Convert to fraction form
    19,282.24/28,920.80 = 5,432.32/x
  3. Step 3: Cross multiply
    19,282.24x = 28,920.80 × 5,432.32
  4. Step 4: Simplify right side
    19,282.24x = 157,107,040.26
  5. Step 5: Solve for x
    x = 157,107,040.26/19,282.24
  6. Step 6: Final answer
    x = 8,147.76

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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.