Home / 18,817.04-28,269.30-11,031.32

Finding the Fourth Proportional to 18,817.04, 28,269.30 and 11,031.32

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Solution

The fourth proportional to 18,817.04, 28,269.30 and 11,031.32 is: 16,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.04 : 28,269.30 = 11,031.32 : x
  2. Step 2: Convert to fraction form
    18,817.04/28,269.30 = 11,031.32/x
  3. Step 3: Cross multiply
    18,817.04x = 28,269.30 × 11,031.32
  4. Step 4: Simplify right side
    18,817.04x = 311,847,694.48
  5. Step 5: Solve for x
    x = 311,847,694.48/18,817.04
  6. Step 6: Final answer
    x = 16,572.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.