Home / 28,152.96-42,290.88-17,216.64

Finding the Fourth Proportional to 28,152.96, 42,290.88 and 17,216.64

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Solution

The fourth proportional to 28,152.96, 42,290.88 and 17,216.64 is: 25,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.96 : 42,290.88 = 17,216.64 : x
  2. Step 2: Convert to fraction form
    28,152.96/42,290.88 = 17,216.64/x
  3. Step 3: Cross multiply
    28,152.96x = 42,290.88 × 17,216.64
  4. Step 4: Simplify right side
    28,152.96x = 728,106,856.24
  5. Step 5: Solve for x
    x = 728,106,856.24/28,152.96
  6. Step 6: Final answer
    x = 25,862.53

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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.