Home / 21,790.29-32,699.23-9,310.37

Finding the Fourth Proportional to 21,790.29, 32,699.23 and 9,310.37

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Solution

The fourth proportional to 21,790.29, 32,699.23 and 9,310.37 is: 13,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.29 : 32,699.23 = 9,310.37 : x
  2. Step 2: Convert to fraction form
    21,790.29/32,699.23 = 9,310.37/x
  3. Step 3: Cross multiply
    21,790.29x = 32,699.23 × 9,310.37
  4. Step 4: Simplify right side
    21,790.29x = 304,441,988.49
  5. Step 5: Solve for x
    x = 304,441,988.49/21,790.29
  6. Step 6: Final answer
    x = 13,971.45

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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.