Home / 34,270.79-51,400.87-13,220.70

Finding the Fourth Proportional to 34,270.79, 51,400.87 and 13,220.70

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Solution

The fourth proportional to 34,270.79, 51,400.87 and 13,220.70 is: 19,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,270.79 : 51,400.87 = 13,220.70 : x
  2. Step 2: Convert to fraction form
    34,270.79/51,400.87 = 13,220.70/x
  3. Step 3: Cross multiply
    34,270.79x = 51,400.87 × 13,220.70
  4. Step 4: Simplify right side
    34,270.79x = 679,555,256.20
  5. Step 5: Solve for x
    x = 679,555,256.20/34,270.79
  6. Step 6: Final answer
    x = 19,828.99

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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.