Home / 25,899.69-38,848.40-8,129.94

Finding the Fourth Proportional to 25,899.69, 38,848.40 and 8,129.94

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Solution

The fourth proportional to 25,899.69, 38,848.40 and 8,129.94 is: 12,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,899.69 : 38,848.40 = 8,129.94 : x
  2. Step 2: Convert to fraction form
    25,899.69/38,848.40 = 8,129.94/x
  3. Step 3: Cross multiply
    25,899.69x = 38,848.40 × 8,129.94
  4. Step 4: Simplify right side
    25,899.69x = 315,835,005.25
  5. Step 5: Solve for x
    x = 315,835,005.25/25,899.69
  6. Step 6: Final answer
    x = 12,194.55

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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.