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Finding the Fourth Proportional to 30,987.24, 46,480.80 and 8,800.82

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Solution

The fourth proportional to 30,987.24, 46,480.80 and 8,800.82 is: 13,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.24 : 46,480.80 = 8,800.82 : x
  2. Step 2: Convert to fraction form
    30,987.24/46,480.80 = 8,800.82/x
  3. Step 3: Cross multiply
    30,987.24x = 46,480.80 × 8,800.82
  4. Step 4: Simplify right side
    30,987.24x = 409,069,154.26
  5. Step 5: Solve for x
    x = 409,069,154.26/30,987.24
  6. Step 6: Final answer
    x = 13,201.21

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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.