Home / 19,731.72-27,229.61-10,779.23

Finding the Fourth Proportional to 19,731.72, 27,229.61 and 10,779.23

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Solution

The fourth proportional to 19,731.72, 27,229.61 and 10,779.23 is: 14,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.72 : 27,229.61 = 10,779.23 : x
  2. Step 2: Convert to fraction form
    19,731.72/27,229.61 = 10,779.23/x
  3. Step 3: Cross multiply
    19,731.72x = 27,229.61 × 10,779.23
  4. Step 4: Simplify right side
    19,731.72x = 293,514,229.00
  5. Step 5: Solve for x
    x = 293,514,229.00/19,731.72
  6. Step 6: Final answer
    x = 14,875.25

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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.