Home / 28,580.20-42,863.58-7,798.76

Finding the Fourth Proportional to 28,580.20, 42,863.58 and 7,798.76

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Solution

The fourth proportional to 28,580.20, 42,863.58 and 7,798.76 is: 11,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.20 : 42,863.58 = 7,798.76 : x
  2. Step 2: Convert to fraction form
    28,580.20/42,863.58 = 7,798.76/x
  3. Step 3: Cross multiply
    28,580.20x = 42,863.58 × 7,798.76
  4. Step 4: Simplify right side
    28,580.20x = 334,282,773.16
  5. Step 5: Solve for x
    x = 334,282,773.16/28,580.20
  6. Step 6: Final answer
    x = 11,696.31

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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.