Home / 28,484.51-39,306.61-15,737.56

Finding the Fourth Proportional to 28,484.51, 39,306.61 and 15,737.56

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Solution

The fourth proportional to 28,484.51, 39,306.61 and 15,737.56 is: 21,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.51 : 39,306.61 = 15,737.56 : x
  2. Step 2: Convert to fraction form
    28,484.51/39,306.61 = 15,737.56/x
  3. Step 3: Cross multiply
    28,484.51x = 39,306.61 × 15,737.56
  4. Step 4: Simplify right side
    28,484.51x = 618,589,977.20
  5. Step 5: Solve for x
    x = 618,589,977.20/28,484.51
  6. Step 6: Final answer
    x = 21,716.71

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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.