Home / 21,352.11-32,039.73-8,880.72

Finding the Fourth Proportional to 21,352.11, 32,039.73 and 8,880.72

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Solution

The fourth proportional to 21,352.11, 32,039.73 and 8,880.72 is: 13,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.11 : 32,039.73 = 8,880.72 : x
  2. Step 2: Convert to fraction form
    21,352.11/32,039.73 = 8,880.72/x
  3. Step 3: Cross multiply
    21,352.11x = 32,039.73 × 8,880.72
  4. Step 4: Simplify right side
    21,352.11x = 284,535,871.01
  5. Step 5: Solve for x
    x = 284,535,871.01/21,352.11
  6. Step 6: Final answer
    x = 13,325.89

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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.