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Finding the Fourth Proportional to 21,809.17, 32,713.77 and 7,018.08

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Solution

The fourth proportional to 21,809.17, 32,713.77 and 7,018.08 is: 10,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.17 : 32,713.77 = 7,018.08 : x
  2. Step 2: Convert to fraction form
    21,809.17/32,713.77 = 7,018.08/x
  3. Step 3: Cross multiply
    21,809.17x = 32,713.77 × 7,018.08
  4. Step 4: Simplify right side
    21,809.17x = 229,588,005.02
  5. Step 5: Solve for x
    x = 229,588,005.02/21,809.17
  6. Step 6: Final answer
    x = 10,527.13

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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.