Home / 30,418.19-45,628.91-9,643.31

Finding the Fourth Proportional to 30,418.19, 45,628.91 and 9,643.31

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Solution

The fourth proportional to 30,418.19, 45,628.91 and 9,643.31 is: 14,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.19 : 45,628.91 = 9,643.31 : x
  2. Step 2: Convert to fraction form
    30,418.19/45,628.91 = 9,643.31/x
  3. Step 3: Cross multiply
    30,418.19x = 45,628.91 × 9,643.31
  4. Step 4: Simplify right side
    30,418.19x = 440,013,724.09
  5. Step 5: Solve for x
    x = 440,013,724.09/30,418.19
  6. Step 6: Final answer
    x = 14,465.48

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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.