Home / 39,082.21-53,933.36-21,177.70

Finding the Fourth Proportional to 39,082.21, 53,933.36 and 21,177.70

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Solution

The fourth proportional to 39,082.21, 53,933.36 and 21,177.70 is: 29,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,082.21 : 53,933.36 = 21,177.70 : x
  2. Step 2: Convert to fraction form
    39,082.21/53,933.36 = 21,177.70/x
  3. Step 3: Cross multiply
    39,082.21x = 53,933.36 × 21,177.70
  4. Step 4: Simplify right side
    39,082.21x = 1,142,184,142.52
  5. Step 5: Solve for x
    x = 1,142,184,142.52/39,082.21
  6. Step 6: Final answer
    x = 29,225.17

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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.