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Finding the Fourth Proportional to 21,154.02, 31,738.14 and 8,010.06

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Solution

The fourth proportional to 21,154.02, 31,738.14 and 8,010.06 is: 12,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.02 : 31,738.14 = 8,010.06 : x
  2. Step 2: Convert to fraction form
    21,154.02/31,738.14 = 8,010.06/x
  3. Step 3: Cross multiply
    21,154.02x = 31,738.14 × 8,010.06
  4. Step 4: Simplify right side
    21,154.02x = 254,224,405.69
  5. Step 5: Solve for x
    x = 254,224,405.69/21,154.02
  6. Step 6: Final answer
    x = 12,017.78

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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.