Home / 39,725.73-59,588.78-13,430.61

Finding the Fourth Proportional to 39,725.73, 59,588.78 and 13,430.61

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Solution

The fourth proportional to 39,725.73, 59,588.78 and 13,430.61 is: 20,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,725.73 : 59,588.78 = 13,430.61 : x
  2. Step 2: Convert to fraction form
    39,725.73/59,588.78 = 13,430.61/x
  3. Step 3: Cross multiply
    39,725.73x = 59,588.78 × 13,430.61
  4. Step 4: Simplify right side
    39,725.73x = 800,313,597.40
  5. Step 5: Solve for x
    x = 800,313,597.40/39,725.73
  6. Step 6: Final answer
    x = 20,145.98

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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.