Home / 28,525.78-42,772.88-11,670.62

Finding the Fourth Proportional to 28,525.78, 42,772.88 and 11,670.62

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Solution

The fourth proportional to 28,525.78, 42,772.88 and 11,670.62 is: 17,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.78 : 42,772.88 = 11,670.62 : x
  2. Step 2: Convert to fraction form
    28,525.78/42,772.88 = 11,670.62/x
  3. Step 3: Cross multiply
    28,525.78x = 42,772.88 × 11,670.62
  4. Step 4: Simplify right side
    28,525.78x = 499,186,028.79
  5. Step 5: Solve for x
    x = 499,186,028.79/28,525.78
  6. Step 6: Final answer
    x = 17,499.47

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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.