Home / 20,733.16-28,611.70-11,302.20

Finding the Fourth Proportional to 20,733.16, 28,611.70 and 11,302.20

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Solution

The fourth proportional to 20,733.16, 28,611.70 and 11,302.20 is: 15,597.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.16 : 28,611.70 = 11,302.20 : x
  2. Step 2: Convert to fraction form
    20,733.16/28,611.70 = 11,302.20/x
  3. Step 3: Cross multiply
    20,733.16x = 28,611.70 × 11,302.20
  4. Step 4: Simplify right side
    20,733.16x = 323,375,155.74
  5. Step 5: Solve for x
    x = 323,375,155.74/20,733.16
  6. Step 6: Final answer
    x = 15,597.00

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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.