Home / 19,817.72-27,349.28-10,865.57

Finding the Fourth Proportional to 19,817.72, 27,349.28 and 10,865.57

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Solution

The fourth proportional to 19,817.72, 27,349.28 and 10,865.57 is: 14,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.72 : 27,349.28 = 10,865.57 : x
  2. Step 2: Convert to fraction form
    19,817.72/27,349.28 = 10,865.57/x
  3. Step 3: Cross multiply
    19,817.72x = 27,349.28 × 10,865.57
  4. Step 4: Simplify right side
    19,817.72x = 297,165,406.71
  5. Step 5: Solve for x
    x = 297,165,406.71/19,817.72
  6. Step 6: Final answer
    x = 14,994.93

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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.