Home / 19,860.40-27,407.36-10,908.35

Finding the Fourth Proportional to 19,860.40, 27,407.36 and 10,908.35

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Solution

The fourth proportional to 19,860.40, 27,407.36 and 10,908.35 is: 15,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.40 : 27,407.36 = 10,908.35 : x
  2. Step 2: Convert to fraction form
    19,860.40/27,407.36 = 10,908.35/x
  3. Step 3: Cross multiply
    19,860.40x = 27,407.36 × 10,908.35
  4. Step 4: Simplify right side
    19,860.40x = 298,968,965.69
  5. Step 5: Solve for x
    x = 298,968,965.69/19,860.40
  6. Step 6: Final answer
    x = 15,053.52

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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.