Home / 19,920.36-29,898.96-10,066.56

Finding the Fourth Proportional to 19,920.36, 29,898.96 and 10,066.56

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Solution

The fourth proportional to 19,920.36, 29,898.96 and 10,066.56 is: 15,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.36 : 29,898.96 = 10,066.56 : x
  2. Step 2: Convert to fraction form
    19,920.36/29,898.96 = 10,066.56/x
  3. Step 3: Cross multiply
    19,920.36x = 29,898.96 × 10,066.56
  4. Step 4: Simplify right side
    19,920.36x = 300,979,674.78
  5. Step 5: Solve for x
    x = 300,979,674.78/19,920.36
  6. Step 6: Final answer
    x = 15,109.15

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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.