Home / 39,558.42-54,588.87-21,654.18

Finding the Fourth Proportional to 39,558.42, 54,588.87 and 21,654.18

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Solution

The fourth proportional to 39,558.42, 54,588.87 and 21,654.18 is: 29,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.42 : 54,588.87 = 21,654.18 : x
  2. Step 2: Convert to fraction form
    39,558.42/54,588.87 = 21,654.18/x
  3. Step 3: Cross multiply
    39,558.42x = 54,588.87 × 21,654.18
  4. Step 4: Simplify right side
    39,558.42x = 1,182,077,216.98
  5. Step 5: Solve for x
    x = 1,182,077,216.98/39,558.42
  6. Step 6: Final answer
    x = 29,881.81

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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.