Home / 20,627.08-28,465.40-11,195.66

Finding the Fourth Proportional to 20,627.08, 28,465.40 and 11,195.66

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Solution

The fourth proportional to 20,627.08, 28,465.40 and 11,195.66 is: 15,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.08 : 28,465.40 = 11,195.66 : x
  2. Step 2: Convert to fraction form
    20,627.08/28,465.40 = 11,195.66/x
  3. Step 3: Cross multiply
    20,627.08x = 28,465.40 × 11,195.66
  4. Step 4: Simplify right side
    20,627.08x = 318,688,884.19
  5. Step 5: Solve for x
    x = 318,688,884.19/20,627.08
  6. Step 6: Final answer
    x = 15,450.03

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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.