Home / 28,859.28-43,284.78-7,800.57

Finding the Fourth Proportional to 28,859.28, 43,284.78 and 7,800.57

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Solution

The fourth proportional to 28,859.28, 43,284.78 and 7,800.57 is: 11,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.28 : 43,284.78 = 7,800.57 : x
  2. Step 2: Convert to fraction form
    28,859.28/43,284.78 = 7,800.57/x
  3. Step 3: Cross multiply
    28,859.28x = 43,284.78 × 7,800.57
  4. Step 4: Simplify right side
    28,859.28x = 337,645,956.32
  5. Step 5: Solve for x
    x = 337,645,956.32/28,859.28
  6. Step 6: Final answer
    x = 11,699.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.