Home / 28,493.82-42,750.09-13,700.84

Finding the Fourth Proportional to 28,493.82, 42,750.09 and 13,700.84

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Solution

The fourth proportional to 28,493.82, 42,750.09 and 13,700.84 is: 20,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493.82 : 42,750.09 = 13,700.84 : x
  2. Step 2: Convert to fraction form
    28,493.82/42,750.09 = 13,700.84/x
  3. Step 3: Cross multiply
    28,493.82x = 42,750.09 × 13,700.84
  4. Step 4: Simplify right side
    28,493.82x = 585,711,929.33
  5. Step 5: Solve for x
    x = 585,711,929.33/28,493.82
  6. Step 6: Final answer
    x = 20,555.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.