Home / 30,328.68-41,853.52-16,899.80

Finding the Fourth Proportional to 30,328.68, 41,853.52 and 16,899.80

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Solution

The fourth proportional to 30,328.68, 41,853.52 and 16,899.80 is: 23,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328.68 : 41,853.52 = 16,899.80 : x
  2. Step 2: Convert to fraction form
    30,328.68/41,853.52 = 16,899.80/x
  3. Step 3: Cross multiply
    30,328.68x = 41,853.52 × 16,899.80
  4. Step 4: Simplify right side
    30,328.68x = 707,316,117.30
  5. Step 5: Solve for x
    x = 707,316,117.30/30,328.68
  6. Step 6: Final answer
    x = 23,321.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.