Home / 20,533.53-28,336.29-11,102.10

Finding the Fourth Proportional to 20,533.53, 28,336.29 and 11,102.10

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Solution

The fourth proportional to 20,533.53, 28,336.29 and 11,102.10 is: 15,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.53 : 28,336.29 = 11,102.10 : x
  2. Step 2: Convert to fraction form
    20,533.53/28,336.29 = 11,102.10/x
  3. Step 3: Cross multiply
    20,533.53x = 28,336.29 × 11,102.10
  4. Step 4: Simplify right side
    20,533.53x = 314,592,177.32
  5. Step 5: Solve for x
    x = 314,592,177.32/20,533.53
  6. Step 6: Final answer
    x = 15,320.90

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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.