Home / 21,020.76-31,536.90-11,026.17

Finding the Fourth Proportional to 21,020.76, 31,536.90 and 11,026.17

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Solution

The fourth proportional to 21,020.76, 31,536.90 and 11,026.17 is: 16,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.76 : 31,536.90 = 11,026.17 : x
  2. Step 2: Convert to fraction form
    21,020.76/31,536.90 = 11,026.17/x
  3. Step 3: Cross multiply
    21,020.76x = 31,536.90 × 11,026.17
  4. Step 4: Simplify right side
    21,020.76x = 347,731,220.67
  5. Step 5: Solve for x
    x = 347,731,220.67/21,020.76
  6. Step 6: Final answer
    x = 16,542.28

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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.