Home / 39,635.52-54,676.80-30,187.68

Finding the Fourth Proportional to 39,635.52, 54,676.80 and 30,187.68

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Solution

The fourth proportional to 39,635.52, 54,676.80 and 30,187.68 is: 41,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,635.52 : 54,676.80 = 30,187.68 : x
  2. Step 2: Convert to fraction form
    39,635.52/54,676.80 = 30,187.68/x
  3. Step 3: Cross multiply
    39,635.52x = 54,676.80 × 30,187.68
  4. Step 4: Simplify right side
    39,635.52x = 1,650,565,741.82
  5. Step 5: Solve for x
    x = 1,650,565,741.82/39,635.52
  6. Step 6: Final answer
    x = 41,643.60

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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.