Home / 23,830.12-32,881.86-13,621

Finding the Fourth Proportional to 23,830.12, 32,881.86 and 13,621

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Solution

The fourth proportional to 23,830.12, 32,881.86 and 13,621 is: 18,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,830.12 : 32,881.86 = 13,621 : x
  2. Step 2: Convert to fraction form
    23,830.12/32,881.86 = 13,621/x
  3. Step 3: Cross multiply
    23,830.12x = 32,881.86 × 13,621
  4. Step 4: Simplify right side
    23,830.12x = 447,883,815.06
  5. Step 5: Solve for x
    x = 447,883,815.06/23,830.12
  6. Step 6: Final answer
    x = 18,794.86

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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.