Home / 19,731.64-27,230.20-10,779.63

Finding the Fourth Proportional to 19,731.64, 27,230.20 and 10,779.63

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Solution

The fourth proportional to 19,731.64, 27,230.20 and 10,779.63 is: 14,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.64 : 27,230.20 = 10,779.63 : x
  2. Step 2: Convert to fraction form
    19,731.64/27,230.20 = 10,779.63/x
  3. Step 3: Cross multiply
    19,731.64x = 27,230.20 × 10,779.63
  4. Step 4: Simplify right side
    19,731.64x = 293,531,535.25
  5. Step 5: Solve for x
    x = 293,531,535.25/19,731.64
  6. Step 6: Final answer
    x = 14,876.19

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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.