Home / 19,060.80-28,587.72-5,209.68

Finding the Fourth Proportional to 19,060.80, 28,587.72 and 5,209.68

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Solution

The fourth proportional to 19,060.80, 28,587.72 and 5,209.68 is: 7,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,060.80 : 28,587.72 = 5,209.68 : x
  2. Step 2: Convert to fraction form
    19,060.80/28,587.72 = 5,209.68/x
  3. Step 3: Cross multiply
    19,060.80x = 28,587.72 × 5,209.68
  4. Step 4: Simplify right side
    19,060.80x = 148,932,873.13
  5. Step 5: Solve for x
    x = 148,932,873.13/19,060.80
  6. Step 6: Final answer
    x = 7,813.57

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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.