Home / 39,760.74-59,648.40-13,108.30

Finding the Fourth Proportional to 39,760.74, 59,648.40 and 13,108.30

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Solution

The fourth proportional to 39,760.74, 59,648.40 and 13,108.30 is: 19,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,760.74 : 59,648.40 = 13,108.30 : x
  2. Step 2: Convert to fraction form
    39,760.74/59,648.40 = 13,108.30/x
  3. Step 3: Cross multiply
    39,760.74x = 59,648.40 × 13,108.30
  4. Step 4: Simplify right side
    39,760.74x = 781,888,972.60
  5. Step 5: Solve for x
    x = 781,888,972.60/39,760.74
  6. Step 6: Final answer
    x = 19,664.85

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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.