Home / 30,635.66-45,935.73-13,986.79

Finding the Fourth Proportional to 30,635.66, 45,935.73 and 13,986.79

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Solution

The fourth proportional to 30,635.66, 45,935.73 and 13,986.79 is: 20,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635.66 : 45,935.73 = 13,986.79 : x
  2. Step 2: Convert to fraction form
    30,635.66/45,935.73 = 13,986.79/x
  3. Step 3: Cross multiply
    30,635.66x = 45,935.73 × 13,986.79
  4. Step 4: Simplify right side
    30,635.66x = 642,493,294.17
  5. Step 5: Solve for x
    x = 642,493,294.17/30,635.66
  6. Step 6: Final answer
    x = 20,972.07

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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.