Home / 30,603.30-45,876.78-11,895.78

Finding the Fourth Proportional to 30,603.30, 45,876.78 and 11,895.78

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Solution

The fourth proportional to 30,603.30, 45,876.78 and 11,895.78 is: 17,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.30 : 45,876.78 = 11,895.78 : x
  2. Step 2: Convert to fraction form
    30,603.30/45,876.78 = 11,895.78/x
  3. Step 3: Cross multiply
    30,603.30x = 45,876.78 × 11,895.78
  4. Step 4: Simplify right side
    30,603.30x = 545,740,081.99
  5. Step 5: Solve for x
    x = 545,740,081.99/30,603.30
  6. Step 6: Final answer
    x = 17,832.72

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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.