Home / 39,588.16-54,631.60-21,683.16

Finding the Fourth Proportional to 39,588.16, 54,631.60 and 21,683.16

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Solution

The fourth proportional to 39,588.16, 54,631.60 and 21,683.16 is: 29,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,588.16 : 54,631.60 = 21,683.16 : x
  2. Step 2: Convert to fraction form
    39,588.16/54,631.60 = 21,683.16/x
  3. Step 3: Cross multiply
    39,588.16x = 54,631.60 × 21,683.16
  4. Step 4: Simplify right side
    39,588.16x = 1,184,585,723.86
  5. Step 5: Solve for x
    x = 1,184,585,723.86/39,588.16
  6. Step 6: Final answer
    x = 29,922.73

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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.