Home / 39,811.28-54,821.06-38,927.30

Finding the Fourth Proportional to 39,811.28, 54,821.06 and 38,927.30

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Solution

The fourth proportional to 39,811.28, 54,821.06 and 38,927.30 is: 53,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.28 : 54,821.06 = 38,927.30 : x
  2. Step 2: Convert to fraction form
    39,811.28/54,821.06 = 38,927.30/x
  3. Step 3: Cross multiply
    39,811.28x = 54,821.06 × 38,927.30
  4. Step 4: Simplify right side
    39,811.28x = 2,134,035,848.94
  5. Step 5: Solve for x
    x = 2,134,035,848.94/39,811.28
  6. Step 6: Final answer
    x = 53,603.80

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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.