Home / 30,005.27-45,014.61-11,285.47

Finding the Fourth Proportional to 30,005.27, 45,014.61 and 11,285.47

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Solution

The fourth proportional to 30,005.27, 45,014.61 and 11,285.47 is: 16,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.27 : 45,014.61 = 11,285.47 : x
  2. Step 2: Convert to fraction form
    30,005.27/45,014.61 = 11,285.47/x
  3. Step 3: Cross multiply
    30,005.27x = 45,014.61 × 11,285.47
  4. Step 4: Simplify right side
    30,005.27x = 508,010,780.88
  5. Step 5: Solve for x
    x = 508,010,780.88/30,005.27
  6. Step 6: Final answer
    x = 16,930.72

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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.