Home / 30,000.48-45,006.18-15,015.42

Finding the Fourth Proportional to 30,000.48, 45,006.18 and 15,015.42

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Solution

The fourth proportional to 30,000.48, 45,006.18 and 15,015.42 is: 22,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.48 : 45,006.18 = 15,015.42 : x
  2. Step 2: Convert to fraction form
    30,000.48/45,006.18 = 15,015.42/x
  3. Step 3: Cross multiply
    30,000.48x = 45,006.18 × 15,015.42
  4. Step 4: Simplify right side
    30,000.48x = 675,786,695.30
  5. Step 5: Solve for x
    x = 675,786,695.30/30,000.48
  6. Step 6: Final answer
    x = 22,525.86

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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.