Home / 19,899.33-27,461.10-10,947.45

Finding the Fourth Proportional to 19,899.33, 27,461.10 and 10,947.45

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Solution

The fourth proportional to 19,899.33, 27,461.10 and 10,947.45 is: 15,107.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.33 : 27,461.10 = 10,947.45 : x
  2. Step 2: Convert to fraction form
    19,899.33/27,461.10 = 10,947.45/x
  3. Step 3: Cross multiply
    19,899.33x = 27,461.10 × 10,947.45
  4. Step 4: Simplify right side
    19,899.33x = 300,629,019.20
  5. Step 5: Solve for x
    x = 300,629,019.20/19,899.33
  6. Step 6: Final answer
    x = 15,107.49

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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.