Home / 28,505.07-39,351.02-17,900.55

Finding the Fourth Proportional to 28,505.07, 39,351.02 and 17,900.55

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Solution

The fourth proportional to 28,505.07, 39,351.02 and 17,900.55 is: 24,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,505.07 : 39,351.02 = 17,900.55 : x
  2. Step 2: Convert to fraction form
    28,505.07/39,351.02 = 17,900.55/x
  3. Step 3: Cross multiply
    28,505.07x = 39,351.02 × 17,900.55
  4. Step 4: Simplify right side
    28,505.07x = 704,404,764.68
  5. Step 5: Solve for x
    x = 704,404,764.68/28,505.07
  6. Step 6: Final answer
    x = 24,711.56

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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.