Home / 20,528.17-28,328.90-11,096.73

Finding the Fourth Proportional to 20,528.17, 28,328.90 and 11,096.73

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Solution

The fourth proportional to 20,528.17, 28,328.90 and 11,096.73 is: 15,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.17 : 28,328.90 = 11,096.73 : x
  2. Step 2: Convert to fraction form
    20,528.17/28,328.90 = 11,096.73/x
  3. Step 3: Cross multiply
    20,528.17x = 28,328.90 × 11,096.73
  4. Step 4: Simplify right side
    20,528.17x = 314,358,154.50
  5. Step 5: Solve for x
    x = 314,358,154.50/20,528.17
  6. Step 6: Final answer
    x = 15,313.50

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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.