Home / 22,957.02-31,680.99-12,887.64

Finding the Fourth Proportional to 22,957.02, 31,680.99 and 12,887.64

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Solution

The fourth proportional to 22,957.02, 31,680.99 and 12,887.64 is: 17,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,957.02 : 31,680.99 = 12,887.64 : x
  2. Step 2: Convert to fraction form
    22,957.02/31,680.99 = 12,887.64/x
  3. Step 3: Cross multiply
    22,957.02x = 31,680.99 × 12,887.64
  4. Step 4: Simplify right side
    22,957.02x = 408,293,193.96
  5. Step 5: Solve for x
    x = 408,293,193.96/22,957.02
  6. Step 6: Final answer
    x = 17,785.11

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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.