Home / 25,848.76-38,722.65-12,320.68

Finding the Fourth Proportional to 25,848.76, 38,722.65 and 12,320.68

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Solution

The fourth proportional to 25,848.76, 38,722.65 and 12,320.68 is: 18,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,848.76 : 38,722.65 = 12,320.68 : x
  2. Step 2: Convert to fraction form
    25,848.76/38,722.65 = 12,320.68/x
  3. Step 3: Cross multiply
    25,848.76x = 38,722.65 × 12,320.68
  4. Step 4: Simplify right side
    25,848.76x = 477,089,379.40
  5. Step 5: Solve for x
    x = 477,089,379.40/25,848.76
  6. Step 6: Final answer
    x = 18,456.95

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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.