Home / 39,706.32-59,431.50-21,909

Finding the Fourth Proportional to 39,706.32, 59,431.50 and 21,909

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Solution

The fourth proportional to 39,706.32, 59,431.50 and 21,909 is: 32,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.32 : 59,431.50 = 21,909 : x
  2. Step 2: Convert to fraction form
    39,706.32/59,431.50 = 21,909/x
  3. Step 3: Cross multiply
    39,706.32x = 59,431.50 × 21,909
  4. Step 4: Simplify right side
    39,706.32x = 1,302,084,733.50
  5. Step 5: Solve for x
    x = 1,302,084,733.50/39,706.32
  6. Step 6: Final answer
    x = 32,792.88

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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.