Home / 54,015.79-81,036.75-20,282.11

Finding the Fourth Proportional to 54,015.79, 81,036.75 and 20,282.11

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Solution

The fourth proportional to 54,015.79, 81,036.75 and 20,282.11 is: 30,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.79 : 81,036.75 = 20,282.11 : x
  2. Step 2: Convert to fraction form
    54,015.79/81,036.75 = 20,282.11/x
  3. Step 3: Cross multiply
    54,015.79x = 81,036.75 × 20,282.11
  4. Step 4: Simplify right side
    54,015.79x = 1,643,596,277.54
  5. Step 5: Solve for x
    x = 1,643,596,277.54/54,015.79
  6. Step 6: Final answer
    x = 30,428.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.