Home / 39,083.16-53,934.21-21,177.75

Finding the Fourth Proportional to 39,083.16, 53,934.21 and 21,177.75

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Solution

The fourth proportional to 39,083.16, 53,934.21 and 21,177.75 is: 29,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.16 : 53,934.21 = 21,177.75 : x
  2. Step 2: Convert to fraction form
    39,083.16/53,934.21 = 21,177.75/x
  3. Step 3: Cross multiply
    39,083.16x = 53,934.21 × 21,177.75
  4. Step 4: Simplify right side
    39,083.16x = 1,142,205,215.83
  5. Step 5: Solve for x
    x = 1,142,205,215.83/39,083.16
  6. Step 6: Final answer
    x = 29,225.00

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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.