Home / 28,540.48-39,384.24-15,793

Finding the Fourth Proportional to 28,540.48, 39,384.24 and 15,793

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Solution

The fourth proportional to 28,540.48, 39,384.24 and 15,793 is: 21,793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.48 : 39,384.24 = 15,793 : x
  2. Step 2: Convert to fraction form
    28,540.48/39,384.24 = 15,793/x
  3. Step 3: Cross multiply
    28,540.48x = 39,384.24 × 15,793
  4. Step 4: Simplify right side
    28,540.48x = 621,995,302.32
  5. Step 5: Solve for x
    x = 621,995,302.32/28,540.48
  6. Step 6: Final answer
    x = 21,793.44

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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.