Home / 22,861.64-31,549.73-12,789.84

Finding the Fourth Proportional to 22,861.64, 31,549.73 and 12,789.84

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Solution

The fourth proportional to 22,861.64, 31,549.73 and 12,789.84 is: 17,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.64 : 31,549.73 = 12,789.84 : x
  2. Step 2: Convert to fraction form
    22,861.64/31,549.73 = 12,789.84/x
  3. Step 3: Cross multiply
    22,861.64x = 31,549.73 × 12,789.84
  4. Step 4: Simplify right side
    22,861.64x = 403,515,934.79
  5. Step 5: Solve for x
    x = 403,515,934.79/22,861.64
  6. Step 6: Final answer
    x = 17,650.35

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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.