Home / 39,588.11-54,631.62-21,683.11

Finding the Fourth Proportional to 39,588.11, 54,631.62 and 21,683.11

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Solution

The fourth proportional to 39,588.11, 54,631.62 and 21,683.11 is: 29,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,588.11 : 54,631.62 = 21,683.11 : x
  2. Step 2: Convert to fraction form
    39,588.11/54,631.62 = 21,683.11/x
  3. Step 3: Cross multiply
    39,588.11x = 54,631.62 × 21,683.11
  4. Step 4: Simplify right side
    39,588.11x = 1,184,583,317.52
  5. Step 5: Solve for x
    x = 1,184,583,317.52/39,588.11
  6. Step 6: Final answer
    x = 29,922.70

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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.