Home / 39,089.31-53,943.10-21,184.75

Finding the Fourth Proportional to 39,089.31, 53,943.10 and 21,184.75

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Solution

The fourth proportional to 39,089.31, 53,943.10 and 21,184.75 is: 29,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,089.31 : 53,943.10 = 21,184.75 : x
  2. Step 2: Convert to fraction form
    39,089.31/53,943.10 = 21,184.75/x
  3. Step 3: Cross multiply
    39,089.31x = 53,943.10 × 21,184.75
  4. Step 4: Simplify right side
    39,089.31x = 1,142,771,087.73
  5. Step 5: Solve for x
    x = 1,142,771,087.73/39,089.31
  6. Step 6: Final answer
    x = 29,234.87

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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.