Home / 39,507.56-54,520.08-21,602.69

Finding the Fourth Proportional to 39,507.56, 54,520.08 and 21,602.69

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Solution

The fourth proportional to 39,507.56, 54,520.08 and 21,602.69 is: 29,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,507.56 : 54,520.08 = 21,602.69 : x
  2. Step 2: Convert to fraction form
    39,507.56/54,520.08 = 21,602.69/x
  3. Step 3: Cross multiply
    39,507.56x = 54,520.08 × 21,602.69
  4. Step 4: Simplify right side
    39,507.56x = 1,177,780,523.32
  5. Step 5: Solve for x
    x = 1,177,780,523.32/39,507.56
  6. Step 6: Final answer
    x = 29,811.52

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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.