Home / 39,558.98-54,591.44-21,655.12

Finding the Fourth Proportional to 39,558.98, 54,591.44 and 21,655.12

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Solution

The fourth proportional to 39,558.98, 54,591.44 and 21,655.12 is: 29,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.98 : 54,591.44 = 21,655.12 : x
  2. Step 2: Convert to fraction form
    39,558.98/54,591.44 = 21,655.12/x
  3. Step 3: Cross multiply
    39,558.98x = 54,591.44 × 21,655.12
  4. Step 4: Simplify right side
    39,558.98x = 1,182,184,184.17
  5. Step 5: Solve for x
    x = 1,182,184,184.17/39,558.98
  6. Step 6: Final answer
    x = 29,884.09

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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.