Home / 39,416.67-54,395.19-21,512.06

Finding the Fourth Proportional to 39,416.67, 54,395.19 and 21,512.06

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Solution

The fourth proportional to 39,416.67, 54,395.19 and 21,512.06 is: 29,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,416.67 : 54,395.19 = 21,512.06 : x
  2. Step 2: Convert to fraction form
    39,416.67/54,395.19 = 21,512.06/x
  3. Step 3: Cross multiply
    39,416.67x = 54,395.19 × 21,512.06
  4. Step 4: Simplify right side
    39,416.67x = 1,170,152,319.02
  5. Step 5: Solve for x
    x = 1,170,152,319.02/39,416.67
  6. Step 6: Final answer
    x = 29,686.74

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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.