Home / 20,152.52-27,809.63-11,199.94

Finding the Fourth Proportional to 20,152.52, 27,809.63 and 11,199.94

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Solution

The fourth proportional to 20,152.52, 27,809.63 and 11,199.94 is: 15,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.52 : 27,809.63 = 11,199.94 : x
  2. Step 2: Convert to fraction form
    20,152.52/27,809.63 = 11,199.94/x
  3. Step 3: Cross multiply
    20,152.52x = 27,809.63 × 11,199.94
  4. Step 4: Simplify right side
    20,152.52x = 311,466,187.42
  5. Step 5: Solve for x
    x = 311,466,187.42/20,152.52
  6. Step 6: Final answer
    x = 15,455.45

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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.