Home / 19,694.47-27,178.73-10,742.29

Finding the Fourth Proportional to 19,694.47, 27,178.73 and 10,742.29

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Solution

The fourth proportional to 19,694.47, 27,178.73 and 10,742.29 is: 14,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.47 : 27,178.73 = 10,742.29 : x
  2. Step 2: Convert to fraction form
    19,694.47/27,178.73 = 10,742.29/x
  3. Step 3: Cross multiply
    19,694.47x = 27,178.73 × 10,742.29
  4. Step 4: Simplify right side
    19,694.47x = 291,961,931.42
  5. Step 5: Solve for x
    x = 291,961,931.42/19,694.47
  6. Step 6: Final answer
    x = 14,824.56

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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.