Home / 39,077.93-53,927.12-21,171.87

Finding the Fourth Proportional to 39,077.93, 53,927.12 and 21,171.87

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Solution

The fourth proportional to 39,077.93, 53,927.12 and 21,171.87 is: 29,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,077.93 : 53,927.12 = 21,171.87 : x
  2. Step 2: Convert to fraction form
    39,077.93/53,927.12 = 21,171.87/x
  3. Step 3: Cross multiply
    39,077.93x = 53,927.12 × 21,171.87
  4. Step 4: Simplify right side
    39,077.93x = 1,141,737,868.26
  5. Step 5: Solve for x
    x = 1,141,737,868.26/39,077.93
  6. Step 6: Final answer
    x = 29,216.95

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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.