Home / 39,611.43-54,665.19-21,706.47

Finding the Fourth Proportional to 39,611.43, 54,665.19 and 21,706.47

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Solution

The fourth proportional to 39,611.43, 54,665.19 and 21,706.47 is: 29,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.43 : 54,665.19 = 21,706.47 : x
  2. Step 2: Convert to fraction form
    39,611.43/54,665.19 = 21,706.47/x
  3. Step 3: Cross multiply
    39,611.43x = 54,665.19 × 21,706.47
  4. Step 4: Simplify right side
    39,611.43x = 1,186,588,306.78
  5. Step 5: Solve for x
    x = 1,186,588,306.78/39,611.43
  6. Step 6: Final answer
    x = 29,955.70

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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.