Home / 21,010.26-31,521.15-11,015.67

Finding the Fourth Proportional to 21,010.26, 31,521.15 and 11,015.67

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Solution

The fourth proportional to 21,010.26, 31,521.15 and 11,015.67 is: 16,526.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.26 : 31,521.15 = 11,015.67 : x
  2. Step 2: Convert to fraction form
    21,010.26/31,521.15 = 11,015.67/x
  3. Step 3: Cross multiply
    21,010.26x = 31,521.15 × 11,015.67
  4. Step 4: Simplify right side
    21,010.26x = 347,226,586.42
  5. Step 5: Solve for x
    x = 347,226,586.42/21,010.26
  6. Step 6: Final answer
    x = 16,526.52

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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.