Home / 28,347.20-39,119.24-15,600.44

Finding the Fourth Proportional to 28,347.20, 39,119.24 and 15,600.44

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Solution

The fourth proportional to 28,347.20, 39,119.24 and 15,600.44 is: 21,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.20 : 39,119.24 = 15,600.44 : x
  2. Step 2: Convert to fraction form
    28,347.20/39,119.24 = 15,600.44/x
  3. Step 3: Cross multiply
    28,347.20x = 39,119.24 × 15,600.44
  4. Step 4: Simplify right side
    28,347.20x = 610,277,356.47
  5. Step 5: Solve for x
    x = 610,277,356.47/28,347.20
  6. Step 6: Final answer
    x = 21,528.66

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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.