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Finding the Fourth Proportional to 19,999.44, 30,000 and 7,518.24

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Solution

The fourth proportional to 19,999.44, 30,000 and 7,518.24 is: 11,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.44 : 30,000 = 7,518.24 : x
  2. Step 2: Convert to fraction form
    19,999.44/30,000 = 7,518.24/x
  3. Step 3: Cross multiply
    19,999.44x = 30,000 × 7,518.24
  4. Step 4: Simplify right side
    19,999.44x = 225,547,200
  5. Step 5: Solve for x
    x = 225,547,200/19,999.44
  6. Step 6: Final answer
    x = 11,277.68

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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.