Home / 34,109.70-51,152.40-11,923.80

Finding the Fourth Proportional to 34,109.70, 51,152.40 and 11,923.80

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Solution

The fourth proportional to 34,109.70, 51,152.40 and 11,923.80 is: 17,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,109.70 : 51,152.40 = 11,923.80 : x
  2. Step 2: Convert to fraction form
    34,109.70/51,152.40 = 11,923.80/x
  3. Step 3: Cross multiply
    34,109.70x = 51,152.40 × 11,923.80
  4. Step 4: Simplify right side
    34,109.70x = 609,930,987.12
  5. Step 5: Solve for x
    x = 609,930,987.12/34,109.70
  6. Step 6: Final answer
    x = 17,881.45

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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.