Home / 19,731.82-27,229.46-10,779.36

Finding the Fourth Proportional to 19,731.82, 27,229.46 and 10,779.36

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Solution

The fourth proportional to 19,731.82, 27,229.46 and 10,779.36 is: 14,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.82 : 27,229.46 = 10,779.36 : x
  2. Step 2: Convert to fraction form
    19,731.82/27,229.46 = 10,779.36/x
  3. Step 3: Cross multiply
    19,731.82x = 27,229.46 × 10,779.36
  4. Step 4: Simplify right side
    19,731.82x = 293,516,178.89
  5. Step 5: Solve for x
    x = 293,516,178.89/19,731.82
  6. Step 6: Final answer
    x = 14,875.27

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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.