Home / 28,285.60-42,434.52-10,755.76

Finding the Fourth Proportional to 28,285.60, 42,434.52 and 10,755.76

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Solution

The fourth proportional to 28,285.60, 42,434.52 and 10,755.76 is: 16,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.60 : 42,434.52 = 10,755.76 : x
  2. Step 2: Convert to fraction form
    28,285.60/42,434.52 = 10,755.76/x
  3. Step 3: Cross multiply
    28,285.60x = 42,434.52 × 10,755.76
  4. Step 4: Simplify right side
    28,285.60x = 456,415,512.84
  5. Step 5: Solve for x
    x = 456,415,512.84/28,285.60
  6. Step 6: Final answer
    x = 16,135.97

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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.