Home / 34,123.20-51,172.65-15,412.20

Finding the Fourth Proportional to 34,123.20, 51,172.65 and 15,412.20

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Solution

The fourth proportional to 34,123.20, 51,172.65 and 15,412.20 is: 23,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,123.20 : 51,172.65 = 15,412.20 : x
  2. Step 2: Convert to fraction form
    34,123.20/51,172.65 = 15,412.20/x
  3. Step 3: Cross multiply
    34,123.20x = 51,172.65 × 15,412.20
  4. Step 4: Simplify right side
    34,123.20x = 788,683,116.33
  5. Step 5: Solve for x
    x = 788,683,116.33/34,123.20
  6. Step 6: Final answer
    x = 23,112.81

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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.