Home / 30,774.46-42,469.32-18,036.82

Finding the Fourth Proportional to 30,774.46, 42,469.32 and 18,036.82

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Solution

The fourth proportional to 30,774.46, 42,469.32 and 18,036.82 is: 24,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,774.46 : 42,469.32 = 18,036.82 : x
  2. Step 2: Convert to fraction form
    30,774.46/42,469.32 = 18,036.82/x
  3. Step 3: Cross multiply
    30,774.46x = 42,469.32 × 18,036.82
  4. Step 4: Simplify right side
    30,774.46x = 766,011,480.36
  5. Step 5: Solve for x
    x = 766,011,480.36/30,774.46
  6. Step 6: Final answer
    x = 24,891.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.