Home / 30,225.34-45,345.30-19,144.54

Finding the Fourth Proportional to 30,225.34, 45,345.30 and 19,144.54

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Solution

The fourth proportional to 30,225.34, 45,345.30 and 19,144.54 is: 28,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.34 : 45,345.30 = 19,144.54 : x
  2. Step 2: Convert to fraction form
    30,225.34/45,345.30 = 19,144.54/x
  3. Step 3: Cross multiply
    30,225.34x = 45,345.30 × 19,144.54
  4. Step 4: Simplify right side
    30,225.34x = 868,114,909.66
  5. Step 5: Solve for x
    x = 868,114,909.66/30,225.34
  6. Step 6: Final answer
    x = 28,721.43

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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.