Home / 20,630.10-30,940.19-9,526.13

Finding the Fourth Proportional to 20,630.10, 30,940.19 and 9,526.13

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Solution

The fourth proportional to 20,630.10, 30,940.19 and 9,526.13 is: 14,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630.10 : 30,940.19 = 9,526.13 : x
  2. Step 2: Convert to fraction form
    20,630.10/30,940.19 = 9,526.13/x
  3. Step 3: Cross multiply
    20,630.10x = 30,940.19 × 9,526.13
  4. Step 4: Simplify right side
    20,630.10x = 294,740,272.16
  5. Step 5: Solve for x
    x = 294,740,272.16/20,630.10
  6. Step 6: Final answer
    x = 14,286.90

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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.