Home / 39,059.92-53,902.56-21,154.88

Finding the Fourth Proportional to 39,059.92, 53,902.56 and 21,154.88

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Solution

The fourth proportional to 39,059.92, 53,902.56 and 21,154.88 is: 29,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.92 : 53,902.56 = 21,154.88 : x
  2. Step 2: Convert to fraction form
    39,059.92/53,902.56 = 21,154.88/x
  3. Step 3: Cross multiply
    39,059.92x = 53,902.56 × 21,154.88
  4. Step 4: Simplify right side
    39,059.92x = 1,140,302,188.49
  5. Step 5: Solve for x
    x = 1,140,302,188.49/39,059.92
  6. Step 6: Final answer
    x = 29,193.66

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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.