Home / 20,206.64-27,885.76-11,132.32

Finding the Fourth Proportional to 20,206.64, 27,885.76 and 11,132.32

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Solution

The fourth proportional to 20,206.64, 27,885.76 and 11,132.32 is: 15,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.64 : 27,885.76 = 11,132.32 : x
  2. Step 2: Convert to fraction form
    20,206.64/27,885.76 = 11,132.32/x
  3. Step 3: Cross multiply
    20,206.64x = 27,885.76 × 11,132.32
  4. Step 4: Simplify right side
    20,206.64x = 310,433,203.76
  5. Step 5: Solve for x
    x = 310,433,203.76/20,206.64
  6. Step 6: Final answer
    x = 15,362.93

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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.