Home / 21,182.21-29,232.66-12,801.41

Finding the Fourth Proportional to 21,182.21, 29,232.66 and 12,801.41

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Solution

The fourth proportional to 21,182.21, 29,232.66 and 12,801.41 is: 17,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.21 : 29,232.66 = 12,801.41 : x
  2. Step 2: Convert to fraction form
    21,182.21/29,232.66 = 12,801.41/x
  3. Step 3: Cross multiply
    21,182.21x = 29,232.66 × 12,801.41
  4. Step 4: Simplify right side
    21,182.21x = 374,219,119.89
  5. Step 5: Solve for x
    x = 374,219,119.89/21,182.21
  6. Step 6: Final answer
    x = 17,666.67

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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.