Home / 21,217.67-29,277.13-12,263.44

Finding the Fourth Proportional to 21,217.67, 29,277.13 and 12,263.44

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Solution

The fourth proportional to 21,217.67, 29,277.13 and 12,263.44 is: 16,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.67 : 29,277.13 = 12,263.44 : x
  2. Step 2: Convert to fraction form
    21,217.67/29,277.13 = 12,263.44/x
  3. Step 3: Cross multiply
    21,217.67x = 29,277.13 × 12,263.44
  4. Step 4: Simplify right side
    21,217.67x = 359,038,327.13
  5. Step 5: Solve for x
    x = 359,038,327.13/21,217.67
  6. Step 6: Final answer
    x = 16,921.67

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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.