Home / 21,771.23-32,623.72-9,918.09

Finding the Fourth Proportional to 21,771.23, 32,623.72 and 9,918.09

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Solution

The fourth proportional to 21,771.23, 32,623.72 and 9,918.09 is: 14,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.23 : 32,623.72 = 9,918.09 : x
  2. Step 2: Convert to fraction form
    21,771.23/32,623.72 = 9,918.09/x
  3. Step 3: Cross multiply
    21,771.23x = 32,623.72 × 9,918.09
  4. Step 4: Simplify right side
    21,771.23x = 323,564,966.30
  5. Step 5: Solve for x
    x = 323,564,966.30/21,771.23
  6. Step 6: Final answer
    x = 14,862.05

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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.