Home / 21,617.52-29,835.46-15,647.02

Finding the Fourth Proportional to 21,617.52, 29,835.46 and 15,647.02

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Solution

The fourth proportional to 21,617.52, 29,835.46 and 15,647.02 is: 21,595.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.52 : 29,835.46 = 15,647.02 : x
  2. Step 2: Convert to fraction form
    21,617.52/29,835.46 = 15,647.02/x
  3. Step 3: Cross multiply
    21,617.52x = 29,835.46 × 15,647.02
  4. Step 4: Simplify right side
    21,617.52x = 466,836,039.33
  5. Step 5: Solve for x
    x = 466,836,039.33/21,617.52
  6. Step 6: Final answer
    x = 21,595.26

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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.