Home / 31,125.24-46,659.78-21,133.38

Finding the Fourth Proportional to 31,125.24, 46,659.78 and 21,133.38

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Solution

The fourth proportional to 31,125.24, 46,659.78 and 21,133.38 is: 31,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.24 : 46,659.78 = 21,133.38 : x
  2. Step 2: Convert to fraction form
    31,125.24/46,659.78 = 21,133.38/x
  3. Step 3: Cross multiply
    31,125.24x = 46,659.78 × 21,133.38
  4. Step 4: Simplify right side
    31,125.24x = 986,078,861.46
  5. Step 5: Solve for x
    x = 986,078,861.46/31,125.24
  6. Step 6: Final answer
    x = 31,681.00

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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.