Home / 22,905.29-31,611.32-12,833.66

Finding the Fourth Proportional to 22,905.29, 31,611.32 and 12,833.66

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Solution

The fourth proportional to 22,905.29, 31,611.32 and 12,833.66 is: 17,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.29 : 31,611.32 = 12,833.66 : x
  2. Step 2: Convert to fraction form
    22,905.29/31,611.32 = 12,833.66/x
  3. Step 3: Cross multiply
    22,905.29x = 31,611.32 × 12,833.66
  4. Step 4: Simplify right side
    22,905.29x = 405,688,710.81
  5. Step 5: Solve for x
    x = 405,688,710.81/22,905.29
  6. Step 6: Final answer
    x = 17,711.58

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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.