Home / 31,395.18-47,092.40-7,702.49

Finding the Fourth Proportional to 31,395.18, 47,092.40 and 7,702.49

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Solution

The fourth proportional to 31,395.18, 47,092.40 and 7,702.49 is: 11,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,395.18 : 47,092.40 = 7,702.49 : x
  2. Step 2: Convert to fraction form
    31,395.18/47,092.40 = 7,702.49/x
  3. Step 3: Cross multiply
    31,395.18x = 47,092.40 × 7,702.49
  4. Step 4: Simplify right side
    31,395.18x = 362,728,891.51
  5. Step 5: Solve for x
    x = 362,728,891.51/31,395.18
  6. Step 6: Final answer
    x = 11,553.65

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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.