Home / 27,787.01-38,354.70-15,858.29

Finding the Fourth Proportional to 27,787.01, 38,354.70 and 15,858.29

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Solution

The fourth proportional to 27,787.01, 38,354.70 and 15,858.29 is: 21,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.01 : 38,354.70 = 15,858.29 : x
  2. Step 2: Convert to fraction form
    27,787.01/38,354.70 = 15,858.29/x
  3. Step 3: Cross multiply
    27,787.01x = 38,354.70 × 15,858.29
  4. Step 4: Simplify right side
    27,787.01x = 608,240,021.62
  5. Step 5: Solve for x
    x = 608,240,021.62/27,787.01
  6. Step 6: Final answer
    x = 21,889.37

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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.