Home / 19,860.57-27,407.77-10,908.25

Finding the Fourth Proportional to 19,860.57, 27,407.77 and 10,908.25

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Solution

The fourth proportional to 19,860.57, 27,407.77 and 10,908.25 is: 15,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.57 : 27,407.77 = 10,908.25 : x
  2. Step 2: Convert to fraction form
    19,860.57/27,407.77 = 10,908.25/x
  3. Step 3: Cross multiply
    19,860.57x = 27,407.77 × 10,908.25
  4. Step 4: Simplify right side
    19,860.57x = 298,970,807.10
  5. Step 5: Solve for x
    x = 298,970,807.10/19,860.57
  6. Step 6: Final answer
    x = 15,053.49

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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.