Home / 20,898.32-28,839.68-11,466.68

Finding the Fourth Proportional to 20,898.32, 28,839.68 and 11,466.68

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Solution

The fourth proportional to 20,898.32, 28,839.68 and 11,466.68 is: 15,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.32 : 28,839.68 = 11,466.68 : x
  2. Step 2: Convert to fraction form
    20,898.32/28,839.68 = 11,466.68/x
  3. Step 3: Cross multiply
    20,898.32x = 28,839.68 × 11,466.68
  4. Step 4: Simplify right side
    20,898.32x = 330,695,381.86
  5. Step 5: Solve for x
    x = 330,695,381.86/20,898.32
  6. Step 6: Final answer
    x = 15,824.02

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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.