Home / 19,403.91-29,111.22-7,725.33

Finding the Fourth Proportional to 19,403.91, 29,111.22 and 7,725.33

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Solution

The fourth proportional to 19,403.91, 29,111.22 and 7,725.33 is: 11,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.91 : 29,111.22 = 7,725.33 : x
  2. Step 2: Convert to fraction form
    19,403.91/29,111.22 = 7,725.33/x
  3. Step 3: Cross multiply
    19,403.91x = 29,111.22 × 7,725.33
  4. Step 4: Simplify right side
    19,403.91x = 224,893,781.20
  5. Step 5: Solve for x
    x = 224,893,781.20/19,403.91
  6. Step 6: Final answer
    x = 11,590.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.