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Finding the Fourth Proportional to 31,153.99, 46,660.61 and 21,835.49

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Solution

The fourth proportional to 31,153.99, 46,660.61 and 21,835.49 is: 32,703.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,153.99 : 46,660.61 = 21,835.49 : x
  2. Step 2: Convert to fraction form
    31,153.99/46,660.61 = 21,835.49/x
  3. Step 3: Cross multiply
    31,153.99x = 46,660.61 × 21,835.49
  4. Step 4: Simplify right side
    31,153.99x = 1,018,857,185.30
  5. Step 5: Solve for x
    x = 1,018,857,185.30/31,153.99
  6. Step 6: Final answer
    x = 32,703.91

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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.