Home / 39,603.41-54,652.70-21,699.09

Finding the Fourth Proportional to 39,603.41, 54,652.70 and 21,699.09

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Solution

The fourth proportional to 39,603.41, 54,652.70 and 21,699.09 is: 29,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603.41 : 54,652.70 = 21,699.09 : x
  2. Step 2: Convert to fraction form
    39,603.41/54,652.70 = 21,699.09/x
  3. Step 3: Cross multiply
    39,603.41x = 54,652.70 × 21,699.09
  4. Step 4: Simplify right side
    39,603.41x = 1,185,913,856.04
  5. Step 5: Solve for x
    x = 1,185,913,856.04/39,603.41
  6. Step 6: Final answer
    x = 29,944.74

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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.