Home / 19,669.30-27,143.95-10,716.80

Finding the Fourth Proportional to 19,669.30, 27,143.95 and 10,716.80

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Solution

The fourth proportional to 19,669.30, 27,143.95 and 10,716.80 is: 14,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.30 : 27,143.95 = 10,716.80 : x
  2. Step 2: Convert to fraction form
    19,669.30/27,143.95 = 10,716.80/x
  3. Step 3: Cross multiply
    19,669.30x = 27,143.95 × 10,716.80
  4. Step 4: Simplify right side
    19,669.30x = 290,896,358.36
  5. Step 5: Solve for x
    x = 290,896,358.36/19,669.30
  6. Step 6: Final answer
    x = 14,789.36

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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.