Home / 39,188.02-54,079.45-21,283.03

Finding the Fourth Proportional to 39,188.02, 54,079.45 and 21,283.03

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Solution

The fourth proportional to 39,188.02, 54,079.45 and 21,283.03 is: 29,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.02 : 54,079.45 = 21,283.03 : x
  2. Step 2: Convert to fraction form
    39,188.02/54,079.45 = 21,283.03/x
  3. Step 3: Cross multiply
    39,188.02x = 54,079.45 × 21,283.03
  4. Step 4: Simplify right side
    39,188.02x = 1,150,974,556.73
  5. Step 5: Solve for x
    x = 1,150,974,556.73/39,188.02
  6. Step 6: Final answer
    x = 29,370.57

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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.