Home / 21,700.43-32,554.70-9,855.03

Finding the Fourth Proportional to 21,700.43, 32,554.70 and 9,855.03

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Solution

The fourth proportional to 21,700.43, 32,554.70 and 9,855.03 is: 14,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.43 : 32,554.70 = 9,855.03 : x
  2. Step 2: Convert to fraction form
    21,700.43/32,554.70 = 9,855.03/x
  3. Step 3: Cross multiply
    21,700.43x = 32,554.70 × 9,855.03
  4. Step 4: Simplify right side
    21,700.43x = 320,827,545.14
  5. Step 5: Solve for x
    x = 320,827,545.14/21,700.43
  6. Step 6: Final answer
    x = 14,784.39

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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.