Home / 21,715.49-32,554.78-20,682.14

Finding the Fourth Proportional to 21,715.49, 32,554.78 and 20,682.14

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Solution

The fourth proportional to 21,715.49, 32,554.78 and 20,682.14 is: 31,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.49 : 32,554.78 = 20,682.14 : x
  2. Step 2: Convert to fraction form
    21,715.49/32,554.78 = 20,682.14/x
  3. Step 3: Cross multiply
    21,715.49x = 32,554.78 × 20,682.14
  4. Step 4: Simplify right side
    21,715.49x = 673,302,303.15
  5. Step 5: Solve for x
    x = 673,302,303.15/21,715.49
  6. Step 6: Final answer
    x = 31,005.62

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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.