Home / 20,599.53-28,429.12-11,648.62

Finding the Fourth Proportional to 20,599.53, 28,429.12 and 11,648.62

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Solution

The fourth proportional to 20,599.53, 28,429.12 and 11,648.62 is: 16,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.53 : 28,429.12 = 11,648.62 : x
  2. Step 2: Convert to fraction form
    20,599.53/28,429.12 = 11,648.62/x
  3. Step 3: Cross multiply
    20,599.53x = 28,429.12 × 11,648.62
  4. Step 4: Simplify right side
    20,599.53x = 331,160,015.81
  5. Step 5: Solve for x
    x = 331,160,015.81/20,599.53
  6. Step 6: Final answer
    x = 16,076.10

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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.