Home / 25,433.02-38,142.60-10,639.54

Finding the Fourth Proportional to 25,433.02, 38,142.60 and 10,639.54

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Solution

The fourth proportional to 25,433.02, 38,142.60 and 10,639.54 is: 15,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,433.02 : 38,142.60 = 10,639.54 : x
  2. Step 2: Convert to fraction form
    25,433.02/38,142.60 = 10,639.54/x
  3. Step 3: Cross multiply
    25,433.02x = 38,142.60 × 10,639.54
  4. Step 4: Simplify right side
    25,433.02x = 405,819,718.40
  5. Step 5: Solve for x
    x = 405,819,718.40/25,433.02
  6. Step 6: Final answer
    x = 15,956.41

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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.