Home / 39,422.82-59,143.64-13,127.79

Finding the Fourth Proportional to 39,422.82, 59,143.64 and 13,127.79

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Solution

The fourth proportional to 39,422.82, 59,143.64 and 13,127.79 is: 19,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.82 : 59,143.64 = 13,127.79 : x
  2. Step 2: Convert to fraction form
    39,422.82/59,143.64 = 13,127.79/x
  3. Step 3: Cross multiply
    39,422.82x = 59,143.64 × 13,127.79
  4. Step 4: Simplify right side
    39,422.82x = 776,425,285.76
  5. Step 5: Solve for x
    x = 776,425,285.76/39,422.82
  6. Step 6: Final answer
    x = 19,694.82

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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.