Home / 31,809.24-47,640.02-30,702.10

Finding the Fourth Proportional to 31,809.24, 47,640.02 and 30,702.10

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Solution

The fourth proportional to 31,809.24, 47,640.02 and 30,702.10 is: 45,981.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.24 : 47,640.02 = 30,702.10 : x
  2. Step 2: Convert to fraction form
    31,809.24/47,640.02 = 30,702.10/x
  3. Step 3: Cross multiply
    31,809.24x = 47,640.02 × 30,702.10
  4. Step 4: Simplify right side
    31,809.24x = 1,462,648,658.04
  5. Step 5: Solve for x
    x = 1,462,648,658.04/31,809.24
  6. Step 6: Final answer
    x = 45,981.88

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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.