Home / 25,435.83-38,116.76-12,272.79

Finding the Fourth Proportional to 25,435.83, 38,116.76 and 12,272.79

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Solution

The fourth proportional to 25,435.83, 38,116.76 and 12,272.79 is: 18,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,435.83 : 38,116.76 = 12,272.79 : x
  2. Step 2: Convert to fraction form
    25,435.83/38,116.76 = 12,272.79/x
  3. Step 3: Cross multiply
    25,435.83x = 38,116.76 × 12,272.79
  4. Step 4: Simplify right side
    25,435.83x = 467,798,929.60
  5. Step 5: Solve for x
    x = 467,798,929.60/25,435.83
  6. Step 6: Final answer
    x = 18,391.34

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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.