Home / 39,586.96-54,629.53-21,681.73

Finding the Fourth Proportional to 39,586.96, 54,629.53 and 21,681.73

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Solution

The fourth proportional to 39,586.96, 54,629.53 and 21,681.73 is: 29,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,586.96 : 54,629.53 = 21,681.73 : x
  2. Step 2: Convert to fraction form
    39,586.96/54,629.53 = 21,681.73/x
  3. Step 3: Cross multiply
    39,586.96x = 54,629.53 × 21,681.73
  4. Step 4: Simplify right side
    39,586.96x = 1,184,462,719.49
  5. Step 5: Solve for x
    x = 1,184,462,719.49/39,586.96
  6. Step 6: Final answer
    x = 29,920.53

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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.