Home / 20,023.08-27,631.36-11,070.35

Finding the Fourth Proportional to 20,023.08, 27,631.36 and 11,070.35

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Solution

The fourth proportional to 20,023.08, 27,631.36 and 11,070.35 is: 15,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.08 : 27,631.36 = 11,070.35 : x
  2. Step 2: Convert to fraction form
    20,023.08/27,631.36 = 11,070.35/x
  3. Step 3: Cross multiply
    20,023.08x = 27,631.36 × 11,070.35
  4. Step 4: Simplify right side
    20,023.08x = 305,888,770.82
  5. Step 5: Solve for x
    x = 305,888,770.82/20,023.08
  6. Step 6: Final answer
    x = 15,276.81

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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.