Home / 25,784.13-38,681.87-8,255.73

Finding the Fourth Proportional to 25,784.13, 38,681.87 and 8,255.73

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Solution

The fourth proportional to 25,784.13, 38,681.87 and 8,255.73 is: 12,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.13 : 38,681.87 = 8,255.73 : x
  2. Step 2: Convert to fraction form
    25,784.13/38,681.87 = 8,255.73/x
  3. Step 3: Cross multiply
    25,784.13x = 38,681.87 × 8,255.73
  4. Step 4: Simplify right side
    25,784.13x = 319,347,033.34
  5. Step 5: Solve for x
    x = 319,347,033.34/25,784.13
  6. Step 6: Final answer
    x = 12,385.41

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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.