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Finding the Fourth Proportional to 39,984, 59,971.71 and 21,244.17

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Solution

The fourth proportional to 39,984, 59,971.71 and 21,244.17 is: 31,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984 : 59,971.71 = 21,244.17 : x
  2. Step 2: Convert to fraction form
    39,984/59,971.71 = 21,244.17/x
  3. Step 3: Cross multiply
    39,984x = 59,971.71 × 21,244.17
  4. Step 4: Simplify right side
    39,984x = 1,274,049,202.43
  5. Step 5: Solve for x
    x = 1,274,049,202.43/39,984
  6. Step 6: Final answer
    x = 31,863.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.