Home / 30,211.08-45,305.80-11,486.12

Finding the Fourth Proportional to 30,211.08, 45,305.80 and 11,486.12

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Solution

The fourth proportional to 30,211.08, 45,305.80 and 11,486.12 is: 17,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.08 : 45,305.80 = 11,486.12 : x
  2. Step 2: Convert to fraction form
    30,211.08/45,305.80 = 11,486.12/x
  3. Step 3: Cross multiply
    30,211.08x = 45,305.80 × 11,486.12
  4. Step 4: Simplify right side
    30,211.08x = 520,387,855.50
  5. Step 5: Solve for x
    x = 520,387,855.50/30,211.08
  6. Step 6: Final answer
    x = 17,225.07

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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.