Home / 39,784.48-54,909.60-22,789.60

Finding the Fourth Proportional to 39,784.48, 54,909.60 and 22,789.60

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Solution

The fourth proportional to 39,784.48, 54,909.60 and 22,789.60 is: 31,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.48 : 54,909.60 = 22,789.60 : x
  2. Step 2: Convert to fraction form
    39,784.48/54,909.60 = 22,789.60/x
  3. Step 3: Cross multiply
    39,784.48x = 54,909.60 × 22,789.60
  4. Step 4: Simplify right side
    39,784.48x = 1,251,367,820.16
  5. Step 5: Solve for x
    x = 1,251,367,820.16/39,784.48
  6. Step 6: Final answer
    x = 31,453.67

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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.