Home / 19,738.36-29,613-10,979.42

Finding the Fourth Proportional to 19,738.36, 29,613 and 10,979.42

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Solution

The fourth proportional to 19,738.36, 29,613 and 10,979.42 is: 16,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.36 : 29,613 = 10,979.42 : x
  2. Step 2: Convert to fraction form
    19,738.36/29,613 = 10,979.42/x
  3. Step 3: Cross multiply
    19,738.36x = 29,613 × 10,979.42
  4. Step 4: Simplify right side
    19,738.36x = 325,133,564.46
  5. Step 5: Solve for x
    x = 325,133,564.46/19,738.36
  6. Step 6: Final answer
    x = 16,472.17

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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.