Home / 39,611.13-54,663.04-21,706.09

Finding the Fourth Proportional to 39,611.13, 54,663.04 and 21,706.09

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Solution

The fourth proportional to 39,611.13, 54,663.04 and 21,706.09 is: 29,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.13 : 54,663.04 = 21,706.09 : x
  2. Step 2: Convert to fraction form
    39,611.13/54,663.04 = 21,706.09/x
  3. Step 3: Cross multiply
    39,611.13x = 54,663.04 × 21,706.09
  4. Step 4: Simplify right side
    39,611.13x = 1,186,520,802.73
  5. Step 5: Solve for x
    x = 1,186,520,802.73/39,611.13
  6. Step 6: Final answer
    x = 29,954.23

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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.