Home / 21,337.27-29,445.46-11,905.84

Finding the Fourth Proportional to 21,337.27, 29,445.46 and 11,905.84

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Solution

The fourth proportional to 21,337.27, 29,445.46 and 11,905.84 is: 16,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.27 : 29,445.46 = 11,905.84 : x
  2. Step 2: Convert to fraction form
    21,337.27/29,445.46 = 11,905.84/x
  3. Step 3: Cross multiply
    21,337.27x = 29,445.46 × 11,905.84
  4. Step 4: Simplify right side
    21,337.27x = 350,572,776.90
  5. Step 5: Solve for x
    x = 350,572,776.90/21,337.27
  6. Step 6: Final answer
    x = 16,430.06

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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.