Home / 39,938.16-59,912.56-11,858.55

Finding the Fourth Proportional to 39,938.16, 59,912.56 and 11,858.55

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Solution

The fourth proportional to 39,938.16, 59,912.56 and 11,858.55 is: 17,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.16 : 59,912.56 = 11,858.55 : x
  2. Step 2: Convert to fraction form
    39,938.16/59,912.56 = 11,858.55/x
  3. Step 3: Cross multiply
    39,938.16x = 59,912.56 × 11,858.55
  4. Step 4: Simplify right side
    39,938.16x = 710,476,215.55
  5. Step 5: Solve for x
    x = 710,476,215.55/39,938.16
  6. Step 6: Final answer
    x = 17,789.41

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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.