Home / 21,487.73-29,652.60-11,927.05

Finding the Fourth Proportional to 21,487.73, 29,652.60 and 11,927.05

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Solution

The fourth proportional to 21,487.73, 29,652.60 and 11,927.05 is: 16,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.73 : 29,652.60 = 11,927.05 : x
  2. Step 2: Convert to fraction form
    21,487.73/29,652.60 = 11,927.05/x
  3. Step 3: Cross multiply
    21,487.73x = 29,652.60 × 11,927.05
  4. Step 4: Simplify right side
    21,487.73x = 353,668,042.83
  5. Step 5: Solve for x
    x = 353,668,042.83/21,487.73
  6. Step 6: Final answer
    x = 16,459.07

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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.