Home / 39,640.07-54,666.14-31,600.38

Finding the Fourth Proportional to 39,640.07, 54,666.14 and 31,600.38

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Solution

The fourth proportional to 39,640.07, 54,666.14 and 31,600.38 is: 43,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.07 : 54,666.14 = 31,600.38 : x
  2. Step 2: Convert to fraction form
    39,640.07/54,666.14 = 31,600.38/x
  3. Step 3: Cross multiply
    39,640.07x = 54,666.14 × 31,600.38
  4. Step 4: Simplify right side
    39,640.07x = 1,727,470,639.13
  5. Step 5: Solve for x
    x = 1,727,470,639.13/39,640.07
  6. Step 6: Final answer
    x = 43,578.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.