Home / 21,266.64-31,888.17-8,604.96

Finding the Fourth Proportional to 21,266.64, 31,888.17 and 8,604.96

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Solution

The fourth proportional to 21,266.64, 31,888.17 and 8,604.96 is: 12,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.64 : 31,888.17 = 8,604.96 : x
  2. Step 2: Convert to fraction form
    21,266.64/31,888.17 = 8,604.96/x
  3. Step 3: Cross multiply
    21,266.64x = 31,888.17 × 8,604.96
  4. Step 4: Simplify right side
    21,266.64x = 274,396,427.32
  5. Step 5: Solve for x
    x = 274,396,427.32/21,266.64
  6. Step 6: Final answer
    x = 12,902.67

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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.