Home / 19,871.04-27,422.70-10,919.36

Finding the Fourth Proportional to 19,871.04, 27,422.70 and 10,919.36

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Solution

The fourth proportional to 19,871.04, 27,422.70 and 10,919.36 is: 15,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.04 : 27,422.70 = 10,919.36 : x
  2. Step 2: Convert to fraction form
    19,871.04/27,422.70 = 10,919.36/x
  3. Step 3: Cross multiply
    19,871.04x = 27,422.70 × 10,919.36
  4. Step 4: Simplify right side
    19,871.04x = 299,438,333.47
  5. Step 5: Solve for x
    x = 299,438,333.47/19,871.04
  6. Step 6: Final answer
    x = 15,069.08

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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.