Home / 39,440.62-59,170.34-13,145.59

Finding the Fourth Proportional to 39,440.62, 59,170.34 and 13,145.59

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Solution

The fourth proportional to 39,440.62, 59,170.34 and 13,145.59 is: 19,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.62 : 59,170.34 = 13,145.59 : x
  2. Step 2: Convert to fraction form
    39,440.62/59,170.34 = 13,145.59/x
  3. Step 3: Cross multiply
    39,440.62x = 59,170.34 × 13,145.59
  4. Step 4: Simplify right side
    39,440.62x = 777,829,029.80
  5. Step 5: Solve for x
    x = 777,829,029.80/39,440.62
  6. Step 6: Final answer
    x = 19,721.52

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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.