Home / 28,539.75-39,394.57-16,613.11

Finding the Fourth Proportional to 28,539.75, 39,394.57 and 16,613.11

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Solution

The fourth proportional to 28,539.75, 39,394.57 and 16,613.11 is: 22,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.75 : 39,394.57 = 16,613.11 : x
  2. Step 2: Convert to fraction form
    28,539.75/39,394.57 = 16,613.11/x
  3. Step 3: Cross multiply
    28,539.75x = 39,394.57 × 16,613.11
  4. Step 4: Simplify right side
    28,539.75x = 654,466,324.81
  5. Step 5: Solve for x
    x = 654,466,324.81/28,539.75
  6. Step 6: Final answer
    x = 22,931.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.