Home / 28,565.52-39,433.15-18,880.81

Finding the Fourth Proportional to 28,565.52, 39,433.15 and 18,880.81

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Solution

The fourth proportional to 28,565.52, 39,433.15 and 18,880.81 is: 26,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.52 : 39,433.15 = 18,880.81 : x
  2. Step 2: Convert to fraction form
    28,565.52/39,433.15 = 18,880.81/x
  3. Step 3: Cross multiply
    28,565.52x = 39,433.15 × 18,880.81
  4. Step 4: Simplify right side
    28,565.52x = 744,529,812.85
  5. Step 5: Solve for x
    x = 744,529,812.85/28,565.52
  6. Step 6: Final answer
    x = 26,063.93

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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.