Home / 39,057.28-53,898.75-21,151.87

Finding the Fourth Proportional to 39,057.28, 53,898.75 and 21,151.87

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Solution

The fourth proportional to 39,057.28, 53,898.75 and 21,151.87 is: 29,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,057.28 : 53,898.75 = 21,151.87 : x
  2. Step 2: Convert to fraction form
    39,057.28/53,898.75 = 21,151.87/x
  3. Step 3: Cross multiply
    39,057.28x = 53,898.75 × 21,151.87
  4. Step 4: Simplify right side
    39,057.28x = 1,140,059,353.16
  5. Step 5: Solve for x
    x = 1,140,059,353.16/39,057.28
  6. Step 6: Final answer
    x = 29,189.42

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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.