Home / 21,528.28-29,709.18-12,096.84

Finding the Fourth Proportional to 21,528.28, 29,709.18 and 12,096.84

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Solution

The fourth proportional to 21,528.28, 29,709.18 and 12,096.84 is: 16,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.28 : 29,709.18 = 12,096.84 : x
  2. Step 2: Convert to fraction form
    21,528.28/29,709.18 = 12,096.84/x
  3. Step 3: Cross multiply
    21,528.28x = 29,709.18 × 12,096.84
  4. Step 4: Simplify right side
    21,528.28x = 359,387,308.40
  5. Step 5: Solve for x
    x = 359,387,308.40/21,528.28
  6. Step 6: Final answer
    x = 16,693.73

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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.