Home / 20,307.42-28,037.45-18,179.33

Finding the Fourth Proportional to 20,307.42, 28,037.45 and 18,179.33

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Solution

The fourth proportional to 20,307.42, 28,037.45 and 18,179.33 is: 25,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.42 : 28,037.45 = 18,179.33 : x
  2. Step 2: Convert to fraction form
    20,307.42/28,037.45 = 18,179.33/x
  3. Step 3: Cross multiply
    20,307.42x = 28,037.45 × 18,179.33
  4. Step 4: Simplify right side
    20,307.42x = 509,701,824.82
  5. Step 5: Solve for x
    x = 509,701,824.82/20,307.42
  6. Step 6: Final answer
    x = 25,099.29

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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.