Home / 19,740.23-27,241.47-10,787.79

Finding the Fourth Proportional to 19,740.23, 27,241.47 and 10,787.79

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Solution

The fourth proportional to 19,740.23, 27,241.47 and 10,787.79 is: 14,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.23 : 27,241.47 = 10,787.79 : x
  2. Step 2: Convert to fraction form
    19,740.23/27,241.47 = 10,787.79/x
  3. Step 3: Cross multiply
    19,740.23x = 27,241.47 × 10,787.79
  4. Step 4: Simplify right side
    19,740.23x = 293,875,257.65
  5. Step 5: Solve for x
    x = 293,875,257.65/19,740.23
  6. Step 6: Final answer
    x = 14,887.13

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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.