Home / 22,911.05-31,614.40-13,354.07

Finding the Fourth Proportional to 22,911.05, 31,614.40 and 13,354.07

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Solution

The fourth proportional to 22,911.05, 31,614.40 and 13,354.07 is: 18,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.05 : 31,614.40 = 13,354.07 : x
  2. Step 2: Convert to fraction form
    22,911.05/31,614.40 = 13,354.07/x
  3. Step 3: Cross multiply
    22,911.05x = 31,614.40 × 13,354.07
  4. Step 4: Simplify right side
    22,911.05x = 422,180,769.23
  5. Step 5: Solve for x
    x = 422,180,769.23/22,911.05
  6. Step 6: Final answer
    x = 18,426.95

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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.