Home / 30,387.30-45,601.33-10,665.91

Finding the Fourth Proportional to 30,387.30, 45,601.33 and 10,665.91

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Solution

The fourth proportional to 30,387.30, 45,601.33 and 10,665.91 is: 16,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.30 : 45,601.33 = 10,665.91 : x
  2. Step 2: Convert to fraction form
    30,387.30/45,601.33 = 10,665.91/x
  3. Step 3: Cross multiply
    30,387.30x = 45,601.33 × 10,665.91
  4. Step 4: Simplify right side
    30,387.30x = 486,379,681.66
  5. Step 5: Solve for x
    x = 486,379,681.66/30,387.30
  6. Step 6: Final answer
    x = 16,006.02

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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.