Home / 20,533.26-28,335.98-11,101.89

Finding the Fourth Proportional to 20,533.26, 28,335.98 and 11,101.89

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Solution

The fourth proportional to 20,533.26, 28,335.98 and 11,101.89 is: 15,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.26 : 28,335.98 = 11,101.89 : x
  2. Step 2: Convert to fraction form
    20,533.26/28,335.98 = 11,101.89/x
  3. Step 3: Cross multiply
    20,533.26x = 28,335.98 × 11,101.89
  4. Step 4: Simplify right side
    20,533.26x = 314,582,877.49
  5. Step 5: Solve for x
    x = 314,582,877.49/20,533.26
  6. Step 6: Final answer
    x = 15,320.65

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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.