Home / 22,342.48-30,830.76-12,270.64

Finding the Fourth Proportional to 22,342.48, 30,830.76 and 12,270.64

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Solution

The fourth proportional to 22,342.48, 30,830.76 and 12,270.64 is: 16,932.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,342.48 : 30,830.76 = 12,270.64 : x
  2. Step 2: Convert to fraction form
    22,342.48/30,830.76 = 12,270.64/x
  3. Step 3: Cross multiply
    22,342.48x = 30,830.76 × 12,270.64
  4. Step 4: Simplify right side
    22,342.48x = 378,313,156.89
  5. Step 5: Solve for x
    x = 378,313,156.89/22,342.48
  6. Step 6: Final answer
    x = 16,932.46

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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.