Home / 20,532.08-28,334.30-11,100.64

Finding the Fourth Proportional to 20,532.08, 28,334.30 and 11,100.64

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Solution

The fourth proportional to 20,532.08, 28,334.30 and 11,100.64 is: 15,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.08 : 28,334.30 = 11,100.64 : x
  2. Step 2: Convert to fraction form
    20,532.08/28,334.30 = 11,100.64/x
  3. Step 3: Cross multiply
    20,532.08x = 28,334.30 × 11,100.64
  4. Step 4: Simplify right side
    20,532.08x = 314,528,666.78
  5. Step 5: Solve for x
    x = 314,528,666.78/20,532.08
  6. Step 6: Final answer
    x = 15,318.89

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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.