Home / 19,711-29,565.15-4,919.59

Finding the Fourth Proportional to 19,711, 29,565.15 and 4,919.59

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Solution

The fourth proportional to 19,711, 29,565.15 and 4,919.59 is: 7,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711 : 29,565.15 = 4,919.59 : x
  2. Step 2: Convert to fraction form
    19,711/29,565.15 = 4,919.59/x
  3. Step 3: Cross multiply
    19,711x = 29,565.15 × 4,919.59
  4. Step 4: Simplify right side
    19,711x = 145,448,416.29
  5. Step 5: Solve for x
    x = 145,448,416.29/19,711
  6. Step 6: Final answer
    x = 7,379.05

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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.