Home / 19,731.82-27,230.12-10,779.58

Finding the Fourth Proportional to 19,731.82, 27,230.12 and 10,779.58

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Solution

The fourth proportional to 19,731.82, 27,230.12 and 10,779.58 is: 14,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.82 : 27,230.12 = 10,779.58 : x
  2. Step 2: Convert to fraction form
    19,731.82/27,230.12 = 10,779.58/x
  3. Step 3: Cross multiply
    19,731.82x = 27,230.12 × 10,779.58
  4. Step 4: Simplify right side
    19,731.82x = 293,529,256.95
  5. Step 5: Solve for x
    x = 293,529,256.95/19,731.82
  6. Step 6: Final answer
    x = 14,875.93

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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.