Home / 25,583.29-38,391.27-12,428.49

Finding the Fourth Proportional to 25,583.29, 38,391.27 and 12,428.49

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Solution

The fourth proportional to 25,583.29, 38,391.27 and 12,428.49 is: 18,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,583.29 : 38,391.27 = 12,428.49 : x
  2. Step 2: Convert to fraction form
    25,583.29/38,391.27 = 12,428.49/x
  3. Step 3: Cross multiply
    25,583.29x = 38,391.27 × 12,428.49
  4. Step 4: Simplify right side
    25,583.29x = 477,145,396.69
  5. Step 5: Solve for x
    x = 477,145,396.69/25,583.29
  6. Step 6: Final answer
    x = 18,650.66

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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.