Home / 19,871.82-27,423.36-10,919.07

Finding the Fourth Proportional to 19,871.82, 27,423.36 and 10,919.07

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Solution

The fourth proportional to 19,871.82, 27,423.36 and 10,919.07 is: 15,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.82 : 27,423.36 = 10,919.07 : x
  2. Step 2: Convert to fraction form
    19,871.82/27,423.36 = 10,919.07/x
  3. Step 3: Cross multiply
    19,871.82x = 27,423.36 × 10,919.07
  4. Step 4: Simplify right side
    19,871.82x = 299,437,587.48
  5. Step 5: Solve for x
    x = 299,437,587.48/19,871.82
  6. Step 6: Final answer
    x = 15,068.45

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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.