Home / 39,507.93-54,520.57-21,602.74

Finding the Fourth Proportional to 39,507.93, 54,520.57 and 21,602.74

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Solution

The fourth proportional to 39,507.93, 54,520.57 and 21,602.74 is: 29,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,507.93 : 54,520.57 = 21,602.74 : x
  2. Step 2: Convert to fraction form
    39,507.93/54,520.57 = 21,602.74/x
  3. Step 3: Cross multiply
    39,507.93x = 54,520.57 × 21,602.74
  4. Step 4: Simplify right side
    39,507.93x = 1,177,793,698.36
  5. Step 5: Solve for x
    x = 1,177,793,698.36/39,507.93
  6. Step 6: Final answer
    x = 29,811.58

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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.