Home / 39,716.25-54,808.22-21,566.81

Finding the Fourth Proportional to 39,716.25, 54,808.22 and 21,566.81

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Solution

The fourth proportional to 39,716.25, 54,808.22 and 21,566.81 is: 29,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,716.25 : 54,808.22 = 21,566.81 : x
  2. Step 2: Convert to fraction form
    39,716.25/54,808.22 = 21,566.81/x
  3. Step 3: Cross multiply
    39,716.25x = 54,808.22 × 21,566.81
  4. Step 4: Simplify right side
    39,716.25x = 1,182,038,658.12
  5. Step 5: Solve for x
    x = 1,182,038,658.12/39,716.25
  6. Step 6: Final answer
    x = 29,762.09

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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.