Home / 28,350.20-39,122.34-15,602.22

Finding the Fourth Proportional to 28,350.20, 39,122.34 and 15,602.22

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Solution

The fourth proportional to 28,350.20, 39,122.34 and 15,602.22 is: 21,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.20 : 39,122.34 = 15,602.22 : x
  2. Step 2: Convert to fraction form
    28,350.20/39,122.34 = 15,602.22/x
  3. Step 3: Cross multiply
    28,350.20x = 39,122.34 × 15,602.22
  4. Step 4: Simplify right side
    28,350.20x = 610,395,384.85
  5. Step 5: Solve for x
    x = 610,395,384.85/28,350.20
  6. Step 6: Final answer
    x = 21,530.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.