Home / 25,785.99-38,668.05-9,150.21

Finding the Fourth Proportional to 25,785.99, 38,668.05 and 9,150.21

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Solution

The fourth proportional to 25,785.99, 38,668.05 and 9,150.21 is: 13,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.99 : 38,668.05 = 9,150.21 : x
  2. Step 2: Convert to fraction form
    25,785.99/38,668.05 = 9,150.21/x
  3. Step 3: Cross multiply
    25,785.99x = 38,668.05 × 9,150.21
  4. Step 4: Simplify right side
    25,785.99x = 353,820,777.79
  5. Step 5: Solve for x
    x = 353,820,777.79/25,785.99
  6. Step 6: Final answer
    x = 13,721.43

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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.