Home / 21,817.61-32,724.57-8,666.45

Finding the Fourth Proportional to 21,817.61, 32,724.57 and 8,666.45

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Solution

The fourth proportional to 21,817.61, 32,724.57 and 8,666.45 is: 12,998.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817.61 : 32,724.57 = 8,666.45 : x
  2. Step 2: Convert to fraction form
    21,817.61/32,724.57 = 8,666.45/x
  3. Step 3: Cross multiply
    21,817.61x = 32,724.57 × 8,666.45
  4. Step 4: Simplify right side
    21,817.61x = 283,605,686.05
  5. Step 5: Solve for x
    x = 283,605,686.05/21,817.61
  6. Step 6: Final answer
    x = 12,998.94

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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.