Home / 19,860.40-27,407.44-10,908.72

Finding the Fourth Proportional to 19,860.40, 27,407.44 and 10,908.72

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Solution

The fourth proportional to 19,860.40, 27,407.44 and 10,908.72 is: 15,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.40 : 27,407.44 = 10,908.72 : x
  2. Step 2: Convert to fraction form
    19,860.40/27,407.44 = 10,908.72/x
  3. Step 3: Cross multiply
    19,860.40x = 27,407.44 × 10,908.72
  4. Step 4: Simplify right side
    19,860.40x = 298,980,088.88
  5. Step 5: Solve for x
    x = 298,980,088.88/19,860.40
  6. Step 6: Final answer
    x = 15,054.08

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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.