Home / 22,921.02-31,631.31-12,851.64

Finding the Fourth Proportional to 22,921.02, 31,631.31 and 12,851.64

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Solution

The fourth proportional to 22,921.02, 31,631.31 and 12,851.64 is: 17,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.02 : 31,631.31 = 12,851.64 : x
  2. Step 2: Convert to fraction form
    22,921.02/31,631.31 = 12,851.64/x
  3. Step 3: Cross multiply
    22,921.02x = 31,631.31 × 12,851.64
  4. Step 4: Simplify right side
    22,921.02x = 406,514,208.85
  5. Step 5: Solve for x
    x = 406,514,208.85/22,921.02
  6. Step 6: Final answer
    x = 17,735.43

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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.