Home / 19,378.31-26,742.58-10,881.11

Finding the Fourth Proportional to 19,378.31, 26,742.58 and 10,881.11

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Solution

The fourth proportional to 19,378.31, 26,742.58 and 10,881.11 is: 15,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.31 : 26,742.58 = 10,881.11 : x
  2. Step 2: Convert to fraction form
    19,378.31/26,742.58 = 10,881.11/x
  3. Step 3: Cross multiply
    19,378.31x = 26,742.58 × 10,881.11
  4. Step 4: Simplify right side
    19,378.31x = 290,988,954.66
  5. Step 5: Solve for x
    x = 290,988,954.66/19,378.31
  6. Step 6: Final answer
    x = 15,016.22

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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.