Home / 15,249.29-21,141.38-14,708.01

Finding the Fourth Proportional to 15,249.29, 21,141.38 and 14,708.01

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Solution

The fourth proportional to 15,249.29, 21,141.38 and 14,708.01 is: 20,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.29 : 21,141.38 = 14,708.01 : x
  2. Step 2: Convert to fraction form
    15,249.29/21,141.38 = 14,708.01/x
  3. Step 3: Cross multiply
    15,249.29x = 21,141.38 × 14,708.01
  4. Step 4: Simplify right side
    15,249.29x = 310,947,665.22
  5. Step 5: Solve for x
    x = 310,947,665.22/15,249.29
  6. Step 6: Final answer
    x = 20,390.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.