Home / 20,733-28,611.56-11,301.60

Finding the Fourth Proportional to 20,733, 28,611.56 and 11,301.60

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Solution

The fourth proportional to 20,733, 28,611.56 and 11,301.60 is: 15,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733 : 28,611.56 = 11,301.60 : x
  2. Step 2: Convert to fraction form
    20,733/28,611.56 = 11,301.60/x
  3. Step 3: Cross multiply
    20,733x = 28,611.56 × 11,301.60
  4. Step 4: Simplify right side
    20,733x = 323,356,406.50
  5. Step 5: Solve for x
    x = 323,356,406.50/20,733
  6. Step 6: Final answer
    x = 15,596.22

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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.