Home / 28,737.72-39,655.71-15,989.94

Finding the Fourth Proportional to 28,737.72, 39,655.71 and 15,989.94

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Solution

The fourth proportional to 28,737.72, 39,655.71 and 15,989.94 is: 22,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.72 : 39,655.71 = 15,989.94 : x
  2. Step 2: Convert to fraction form
    28,737.72/39,655.71 = 15,989.94/x
  3. Step 3: Cross multiply
    28,737.72x = 39,655.71 × 15,989.94
  4. Step 4: Simplify right side
    28,737.72x = 634,092,423.56
  5. Step 5: Solve for x
    x = 634,092,423.56/28,737.72
  6. Step 6: Final answer
    x = 22,064.81

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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.