Home / 20,139.81-27,694.35-17,482.56

Finding the Fourth Proportional to 20,139.81, 27,694.35 and 17,482.56

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Solution

The fourth proportional to 20,139.81, 27,694.35 and 17,482.56 is: 24,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139.81 : 27,694.35 = 17,482.56 : x
  2. Step 2: Convert to fraction form
    20,139.81/27,694.35 = 17,482.56/x
  3. Step 3: Cross multiply
    20,139.81x = 27,694.35 × 17,482.56
  4. Step 4: Simplify right side
    20,139.81x = 484,168,135.54
  5. Step 5: Solve for x
    x = 484,168,135.54/20,139.81
  6. Step 6: Final answer
    x = 24,040.35

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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.