Home / 28,737.18-39,638.70-18,523.62

Finding the Fourth Proportional to 28,737.18, 39,638.70 and 18,523.62

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Solution

The fourth proportional to 28,737.18, 39,638.70 and 18,523.62 is: 25,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.18 : 39,638.70 = 18,523.62 : x
  2. Step 2: Convert to fraction form
    28,737.18/39,638.70 = 18,523.62/x
  3. Step 3: Cross multiply
    28,737.18x = 39,638.70 × 18,523.62
  4. Step 4: Simplify right side
    28,737.18x = 734,252,216.09
  5. Step 5: Solve for x
    x = 734,252,216.09/28,737.18
  6. Step 6: Final answer
    x = 25,550.60

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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.