Home / 34,171.90-51,258.18-11,985.80

Finding the Fourth Proportional to 34,171.90, 51,258.18 and 11,985.80

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Solution

The fourth proportional to 34,171.90, 51,258.18 and 11,985.80 is: 17,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,171.90 : 51,258.18 = 11,985.80 : x
  2. Step 2: Convert to fraction form
    34,171.90/51,258.18 = 11,985.80/x
  3. Step 3: Cross multiply
    34,171.90x = 51,258.18 × 11,985.80
  4. Step 4: Simplify right side
    34,171.90x = 614,370,293.84
  5. Step 5: Solve for x
    x = 614,370,293.84/34,171.90
  6. Step 6: Final answer
    x = 17,978.82

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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.