Home / 25,615.80-38,421.14-7,150.52

Finding the Fourth Proportional to 25,615.80, 38,421.14 and 7,150.52

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Solution

The fourth proportional to 25,615.80, 38,421.14 and 7,150.52 is: 10,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.80 : 38,421.14 = 7,150.52 : x
  2. Step 2: Convert to fraction form
    25,615.80/38,421.14 = 7,150.52/x
  3. Step 3: Cross multiply
    25,615.80x = 38,421.14 × 7,150.52
  4. Step 4: Simplify right side
    25,615.80x = 274,731,129.99
  5. Step 5: Solve for x
    x = 274,731,129.99/25,615.80
  6. Step 6: Final answer
    x = 10,725.07

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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.