Home / 19,817.46-27,339.12-15,844.14

Finding the Fourth Proportional to 19,817.46, 27,339.12 and 15,844.14

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Solution

The fourth proportional to 19,817.46, 27,339.12 and 15,844.14 is: 21,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.46 : 27,339.12 = 15,844.14 : x
  2. Step 2: Convert to fraction form
    19,817.46/27,339.12 = 15,844.14/x
  3. Step 3: Cross multiply
    19,817.46x = 27,339.12 × 15,844.14
  4. Step 4: Simplify right side
    19,817.46x = 433,164,844.76
  5. Step 5: Solve for x
    x = 433,164,844.76/19,817.46
  6. Step 6: Final answer
    x = 21,857.74

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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.