Home / 20,533.04-28,335.60-11,101.59

Finding the Fourth Proportional to 20,533.04, 28,335.60 and 11,101.59

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Solution

The fourth proportional to 20,533.04, 28,335.60 and 11,101.59 is: 15,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.04 : 28,335.60 = 11,101.59 : x
  2. Step 2: Convert to fraction form
    20,533.04/28,335.60 = 11,101.59/x
  3. Step 3: Cross multiply
    20,533.04x = 28,335.60 × 11,101.59
  4. Step 4: Simplify right side
    20,533.04x = 314,570,213.60
  5. Step 5: Solve for x
    x = 314,570,213.60/20,533.04
  6. Step 6: Final answer
    x = 15,320.20

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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.