Home / 19,871.58-27,423.12-10,919.46

Finding the Fourth Proportional to 19,871.58, 27,423.12 and 10,919.46

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Solution

The fourth proportional to 19,871.58, 27,423.12 and 10,919.46 is: 15,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.58 : 27,423.12 = 10,919.46 : x
  2. Step 2: Convert to fraction form
    19,871.58/27,423.12 = 10,919.46/x
  3. Step 3: Cross multiply
    19,871.58x = 27,423.12 × 10,919.46
  4. Step 4: Simplify right side
    19,871.58x = 299,445,661.92
  5. Step 5: Solve for x
    x = 299,445,661.92/19,871.58
  6. Step 6: Final answer
    x = 15,069.04

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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.