Home / 39,890.56-59,835.84-12,188.32

Finding the Fourth Proportional to 39,890.56, 59,835.84 and 12,188.32

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Solution

The fourth proportional to 39,890.56, 59,835.84 and 12,188.32 is: 18,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.56 : 59,835.84 = 12,188.32 : x
  2. Step 2: Convert to fraction form
    39,890.56/59,835.84 = 12,188.32/x
  3. Step 3: Cross multiply
    39,890.56x = 59,835.84 × 12,188.32
  4. Step 4: Simplify right side
    39,890.56x = 729,298,365.39
  5. Step 5: Solve for x
    x = 729,298,365.39/39,890.56
  6. Step 6: Final answer
    x = 18,282.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.