Home / 20,532.39-28,334.77-11,101.02

Finding the Fourth Proportional to 20,532.39, 28,334.77 and 11,101.02

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Solution

The fourth proportional to 20,532.39, 28,334.77 and 11,101.02 is: 15,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.39 : 28,334.77 = 11,101.02 : x
  2. Step 2: Convert to fraction form
    20,532.39/28,334.77 = 11,101.02/x
  3. Step 3: Cross multiply
    20,532.39x = 28,334.77 × 11,101.02
  4. Step 4: Simplify right side
    20,532.39x = 314,544,848.47
  5. Step 5: Solve for x
    x = 314,544,848.47/20,532.39
  6. Step 6: Final answer
    x = 15,319.45

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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.