Home / 22,497.86-31,047.29-12,942.49

Finding the Fourth Proportional to 22,497.86, 31,047.29 and 12,942.49

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Solution

The fourth proportional to 22,497.86, 31,047.29 and 12,942.49 is: 17,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,497.86 : 31,047.29 = 12,942.49 : x
  2. Step 2: Convert to fraction form
    22,497.86/31,047.29 = 12,942.49/x
  3. Step 3: Cross multiply
    22,497.86x = 31,047.29 × 12,942.49
  4. Step 4: Simplify right side
    22,497.86x = 401,829,240.35
  5. Step 5: Solve for x
    x = 401,829,240.35/22,497.86
  6. Step 6: Final answer
    x = 17,860.78

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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.