Home / 23,421.74-32,321.58-12,811.28

Finding the Fourth Proportional to 23,421.74, 32,321.58 and 12,811.28

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Solution

The fourth proportional to 23,421.74, 32,321.58 and 12,811.28 is: 17,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,421.74 : 32,321.58 = 12,811.28 : x
  2. Step 2: Convert to fraction form
    23,421.74/32,321.58 = 12,811.28/x
  3. Step 3: Cross multiply
    23,421.74x = 32,321.58 × 12,811.28
  4. Step 4: Simplify right side
    23,421.74x = 414,080,811.42
  5. Step 5: Solve for x
    x = 414,080,811.42/23,421.74
  6. Step 6: Final answer
    x = 17,679.34

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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.