Home / 25,404.85-38,109.81-8,762.68

Finding the Fourth Proportional to 25,404.85, 38,109.81 and 8,762.68

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Solution

The fourth proportional to 25,404.85, 38,109.81 and 8,762.68 is: 13,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.85 : 38,109.81 = 8,762.68 : x
  2. Step 2: Convert to fraction form
    25,404.85/38,109.81 = 8,762.68/x
  3. Step 3: Cross multiply
    25,404.85x = 38,109.81 × 8,762.68
  4. Step 4: Simplify right side
    25,404.85x = 333,944,069.89
  5. Step 5: Solve for x
    x = 333,944,069.89/25,404.85
  6. Step 6: Final answer
    x = 13,144.89

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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.