Home / 21,675.18-32,556.48-12,927.18

Finding the Fourth Proportional to 21,675.18, 32,556.48 and 12,927.18

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Solution

The fourth proportional to 21,675.18, 32,556.48 and 12,927.18 is: 19,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,675.18 : 32,556.48 = 12,927.18 : x
  2. Step 2: Convert to fraction form
    21,675.18/32,556.48 = 12,927.18/x
  3. Step 3: Cross multiply
    21,675.18x = 32,556.48 × 12,927.18
  4. Step 4: Simplify right side
    21,675.18x = 420,863,477.13
  5. Step 5: Solve for x
    x = 420,863,477.13/21,675.18
  6. Step 6: Final answer
    x = 19,416.84

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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.