Home / 22,611.28-31,218.96-14,116.72

Finding the Fourth Proportional to 22,611.28, 31,218.96 and 14,116.72

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Solution

The fourth proportional to 22,611.28, 31,218.96 and 14,116.72 is: 19,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.28 : 31,218.96 = 14,116.72 : x
  2. Step 2: Convert to fraction form
    22,611.28/31,218.96 = 14,116.72/x
  3. Step 3: Cross multiply
    22,611.28x = 31,218.96 × 14,116.72
  4. Step 4: Simplify right side
    22,611.28x = 440,709,317.01
  5. Step 5: Solve for x
    x = 440,709,317.01/22,611.28
  6. Step 6: Final answer
    x = 19,490.68

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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.