Home / 22,569.06-31,135.64-13,611.46

Finding the Fourth Proportional to 22,569.06, 31,135.64 and 13,611.46

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Solution

The fourth proportional to 22,569.06, 31,135.64 and 13,611.46 is: 18,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569.06 : 31,135.64 = 13,611.46 : x
  2. Step 2: Convert to fraction form
    22,569.06/31,135.64 = 13,611.46/x
  3. Step 3: Cross multiply
    22,569.06x = 31,135.64 × 13,611.46
  4. Step 4: Simplify right side
    22,569.06x = 423,801,518.43
  5. Step 5: Solve for x
    x = 423,801,518.43/22,569.06
  6. Step 6: Final answer
    x = 18,777.99

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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.