Home / 25,539.86-38,308.20-12,222.31

Finding the Fourth Proportional to 25,539.86, 38,308.20 and 12,222.31

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Solution

The fourth proportional to 25,539.86, 38,308.20 and 12,222.31 is: 18,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,539.86 : 38,308.20 = 12,222.31 : x
  2. Step 2: Convert to fraction form
    25,539.86/38,308.20 = 12,222.31/x
  3. Step 3: Cross multiply
    25,539.86x = 38,308.20 × 12,222.31
  4. Step 4: Simplify right side
    25,539.86x = 468,214,695.94
  5. Step 5: Solve for x
    x = 468,214,695.94/25,539.86
  6. Step 6: Final answer
    x = 18,332.70

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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.