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Finding the Fourth Proportional to 34,255.70, 51,382.83 and 15,787.70

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Solution

The fourth proportional to 34,255.70, 51,382.83 and 15,787.70 is: 23,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,255.70 : 51,382.83 = 15,787.70 : x
  2. Step 2: Convert to fraction form
    34,255.70/51,382.83 = 15,787.70/x
  3. Step 3: Cross multiply
    34,255.70x = 51,382.83 × 15,787.70
  4. Step 4: Simplify right side
    34,255.70x = 811,216,705.19
  5. Step 5: Solve for x
    x = 811,216,705.19/34,255.70
  6. Step 6: Final answer
    x = 23,681.22

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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.