Home / 39,640.81-59,455.45-11,553.33

Finding the Fourth Proportional to 39,640.81, 59,455.45 and 11,553.33

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Solution

The fourth proportional to 39,640.81, 59,455.45 and 11,553.33 is: 17,328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.81 : 59,455.45 = 11,553.33 : x
  2. Step 2: Convert to fraction form
    39,640.81/59,455.45 = 11,553.33/x
  3. Step 3: Cross multiply
    39,640.81x = 59,455.45 × 11,553.33
  4. Step 4: Simplify right side
    39,640.81x = 686,908,222.57
  5. Step 5: Solve for x
    x = 686,908,222.57/39,640.81
  6. Step 6: Final answer
    x = 17,328.31

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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.