Home / 28,503.77-39,336.03-15,928.52

Finding the Fourth Proportional to 28,503.77, 39,336.03 and 15,928.52

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Solution

The fourth proportional to 28,503.77, 39,336.03 and 15,928.52 is: 21,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.77 : 39,336.03 = 15,928.52 : x
  2. Step 2: Convert to fraction form
    28,503.77/39,336.03 = 15,928.52/x
  3. Step 3: Cross multiply
    28,503.77x = 39,336.03 × 15,928.52
  4. Step 4: Simplify right side
    28,503.77x = 626,564,543.90
  5. Step 5: Solve for x
    x = 626,564,543.90/28,503.77
  6. Step 6: Final answer
    x = 21,981.82

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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.