Home / 34,143.45-51,214.56-13,077.78

Finding the Fourth Proportional to 34,143.45, 51,214.56 and 13,077.78

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Solution

The fourth proportional to 34,143.45, 51,214.56 and 13,077.78 is: 19,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,143.45 : 51,214.56 = 13,077.78 : x
  2. Step 2: Convert to fraction form
    34,143.45/51,214.56 = 13,077.78/x
  3. Step 3: Cross multiply
    34,143.45x = 51,214.56 × 13,077.78
  4. Step 4: Simplify right side
    34,143.45x = 669,772,427.02
  5. Step 5: Solve for x
    x = 669,772,427.02/34,143.45
  6. Step 6: Final answer
    x = 19,616.43

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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.