Home / 38,605.94-53,281.22-21,616.66

Finding the Fourth Proportional to 38,605.94, 53,281.22 and 21,616.66

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Solution

The fourth proportional to 38,605.94, 53,281.22 and 21,616.66 is: 29,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605.94 : 53,281.22 = 21,616.66 : x
  2. Step 2: Convert to fraction form
    38,605.94/53,281.22 = 21,616.66/x
  3. Step 3: Cross multiply
    38,605.94x = 53,281.22 × 21,616.66
  4. Step 4: Simplify right side
    38,605.94x = 1,151,762,017.13
  5. Step 5: Solve for x
    x = 1,151,762,017.13/38,605.94
  6. Step 6: Final answer
    x = 29,833.80

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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.