Home / 30,438.36-45,662.69-9,377.95

Finding the Fourth Proportional to 30,438.36, 45,662.69 and 9,377.95

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Solution

The fourth proportional to 30,438.36, 45,662.69 and 9,377.95 is: 14,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.36 : 45,662.69 = 9,377.95 : x
  2. Step 2: Convert to fraction form
    30,438.36/45,662.69 = 9,377.95/x
  3. Step 3: Cross multiply
    30,438.36x = 45,662.69 × 9,377.95
  4. Step 4: Simplify right side
    30,438.36x = 428,222,423.69
  5. Step 5: Solve for x
    x = 428,222,423.69/30,438.36
  6. Step 6: Final answer
    x = 14,068.51

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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.