Home / 31,269.12-46,905.60-10,507.20

Finding the Fourth Proportional to 31,269.12, 46,905.60 and 10,507.20

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Solution

The fourth proportional to 31,269.12, 46,905.60 and 10,507.20 is: 15,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.12 : 46,905.60 = 10,507.20 : x
  2. Step 2: Convert to fraction form
    31,269.12/46,905.60 = 10,507.20/x
  3. Step 3: Cross multiply
    31,269.12x = 46,905.60 × 10,507.20
  4. Step 4: Simplify right side
    31,269.12x = 492,846,520.32
  5. Step 5: Solve for x
    x = 492,846,520.32/31,269.12
  6. Step 6: Final answer
    x = 15,761.45

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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.