Home / 19,815.05-27,344.60-10,862.54

Finding the Fourth Proportional to 19,815.05, 27,344.60 and 10,862.54

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Solution

The fourth proportional to 19,815.05, 27,344.60 and 10,862.54 is: 14,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.05 : 27,344.60 = 10,862.54 : x
  2. Step 2: Convert to fraction form
    19,815.05/27,344.60 = 10,862.54/x
  3. Step 3: Cross multiply
    19,815.05x = 27,344.60 × 10,862.54
  4. Step 4: Simplify right side
    19,815.05x = 297,031,811.28
  5. Step 5: Solve for x
    x = 297,031,811.28/19,815.05
  6. Step 6: Final answer
    x = 14,990.21

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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.