Home / 22,207.76-30,646.34-12,135.99

Finding the Fourth Proportional to 22,207.76, 30,646.34 and 12,135.99

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Solution

The fourth proportional to 22,207.76, 30,646.34 and 12,135.99 is: 16,747.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.76 : 30,646.34 = 12,135.99 : x
  2. Step 2: Convert to fraction form
    22,207.76/30,646.34 = 12,135.99/x
  3. Step 3: Cross multiply
    22,207.76x = 30,646.34 × 12,135.99
  4. Step 4: Simplify right side
    22,207.76x = 371,923,615.10
  5. Step 5: Solve for x
    x = 371,923,615.10/22,207.76
  6. Step 6: Final answer
    x = 16,747.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.