Home / 22,778.77-31,434.75-12,706.96

Finding the Fourth Proportional to 22,778.77, 31,434.75 and 12,706.96

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Solution

The fourth proportional to 22,778.77, 31,434.75 and 12,706.96 is: 17,535.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.77 : 31,434.75 = 12,706.96 : x
  2. Step 2: Convert to fraction form
    22,778.77/31,434.75 = 12,706.96/x
  3. Step 3: Cross multiply
    22,778.77x = 31,434.75 × 12,706.96
  4. Step 4: Simplify right side
    22,778.77x = 399,440,110.86
  5. Step 5: Solve for x
    x = 399,440,110.86/22,778.77
  6. Step 6: Final answer
    x = 17,535.63

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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.