Home / 20,530.04-28,331.46-11,098.59

Finding the Fourth Proportional to 20,530.04, 28,331.46 and 11,098.59

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Solution

The fourth proportional to 20,530.04, 28,331.46 and 11,098.59 is: 15,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.04 : 28,331.46 = 11,098.59 : x
  2. Step 2: Convert to fraction form
    20,530.04/28,331.46 = 11,098.59/x
  3. Step 3: Cross multiply
    20,530.04x = 28,331.46 × 11,098.59
  4. Step 4: Simplify right side
    20,530.04x = 314,439,258.64
  5. Step 5: Solve for x
    x = 314,439,258.64/20,530.04
  6. Step 6: Final answer
    x = 15,316.06

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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.