Home / 28,550.14-39,398.20-15,803.27

Finding the Fourth Proportional to 28,550.14, 39,398.20 and 15,803.27

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Solution

The fourth proportional to 28,550.14, 39,398.20 and 15,803.27 is: 21,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.14 : 39,398.20 = 15,803.27 : x
  2. Step 2: Convert to fraction form
    28,550.14/39,398.20 = 15,803.27/x
  3. Step 3: Cross multiply
    28,550.14x = 39,398.20 × 15,803.27
  4. Step 4: Simplify right side
    28,550.14x = 622,620,303.36
  5. Step 5: Solve for x
    x = 622,620,303.36/28,550.14
  6. Step 6: Final answer
    x = 21,807.96

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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.