Home / 21,680.10-32,513.23-6,885.56

Finding the Fourth Proportional to 21,680.10, 32,513.23 and 6,885.56

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Solution

The fourth proportional to 21,680.10, 32,513.23 and 6,885.56 is: 10,326.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.10 : 32,513.23 = 6,885.56 : x
  2. Step 2: Convert to fraction form
    21,680.10/32,513.23 = 6,885.56/x
  3. Step 3: Cross multiply
    21,680.10x = 32,513.23 × 6,885.56
  4. Step 4: Simplify right side
    21,680.10x = 223,871,690.05
  5. Step 5: Solve for x
    x = 223,871,690.05/21,680.10
  6. Step 6: Final answer
    x = 10,326.14

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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.