Home / 21,506.11-29,677.99-12,074.67

Finding the Fourth Proportional to 21,506.11, 29,677.99 and 12,074.67

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Solution

The fourth proportional to 21,506.11, 29,677.99 and 12,074.67 is: 16,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.11 : 29,677.99 = 12,074.67 : x
  2. Step 2: Convert to fraction form
    21,506.11/29,677.99 = 12,074.67/x
  3. Step 3: Cross multiply
    21,506.11x = 29,677.99 × 12,074.67
  4. Step 4: Simplify right side
    21,506.11x = 358,351,875.14
  5. Step 5: Solve for x
    x = 358,351,875.14/21,506.11
  6. Step 6: Final answer
    x = 16,662.80

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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.