Home / 19,860.15-27,407.50-10,908.49

Finding the Fourth Proportional to 19,860.15, 27,407.50 and 10,908.49

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Solution

The fourth proportional to 19,860.15, 27,407.50 and 10,908.49 is: 15,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.15 : 27,407.50 = 10,908.49 : x
  2. Step 2: Convert to fraction form
    19,860.15/27,407.50 = 10,908.49/x
  3. Step 3: Cross multiply
    19,860.15x = 27,407.50 × 10,908.49
  4. Step 4: Simplify right side
    19,860.15x = 298,974,439.68
  5. Step 5: Solve for x
    x = 298,974,439.68/19,860.15
  6. Step 6: Final answer
    x = 15,053.99

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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.