Home / 39,188.46-54,079.88-21,283.32

Finding the Fourth Proportional to 39,188.46, 54,079.88 and 21,283.32

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Solution

The fourth proportional to 39,188.46, 54,079.88 and 21,283.32 is: 29,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.46 : 54,079.88 = 21,283.32 : x
  2. Step 2: Convert to fraction form
    39,188.46/54,079.88 = 21,283.32/x
  3. Step 3: Cross multiply
    39,188.46x = 54,079.88 × 21,283.32
  4. Step 4: Simplify right side
    39,188.46x = 1,150,999,391.60
  5. Step 5: Solve for x
    x = 1,150,999,391.60/39,188.46
  6. Step 6: Final answer
    x = 29,370.88

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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.