Home / 21,911.68-30,237.48-12,352.14

Finding the Fourth Proportional to 21,911.68, 30,237.48 and 12,352.14

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Solution

The fourth proportional to 21,911.68, 30,237.48 and 12,352.14 is: 17,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.68 : 30,237.48 = 12,352.14 : x
  2. Step 2: Convert to fraction form
    21,911.68/30,237.48 = 12,352.14/x
  3. Step 3: Cross multiply
    21,911.68x = 30,237.48 × 12,352.14
  4. Step 4: Simplify right side
    21,911.68x = 373,497,586.21
  5. Step 5: Solve for x
    x = 373,497,586.21/21,911.68
  6. Step 6: Final answer
    x = 17,045.59

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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.