Home / 25,556.80-38,336.40-8,027.20

Finding the Fourth Proportional to 25,556.80, 38,336.40 and 8,027.20

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Solution

The fourth proportional to 25,556.80, 38,336.40 and 8,027.20 is: 12,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.80 : 38,336.40 = 8,027.20 : x
  2. Step 2: Convert to fraction form
    25,556.80/38,336.40 = 8,027.20/x
  3. Step 3: Cross multiply
    25,556.80x = 38,336.40 × 8,027.20
  4. Step 4: Simplify right side
    25,556.80x = 307,733,950.08
  5. Step 5: Solve for x
    x = 307,733,950.08/25,556.80
  6. Step 6: Final answer
    x = 12,041.18

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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.