Home / 25,140.78-34,683.66-15,066

Finding the Fourth Proportional to 25,140.78, 34,683.66 and 15,066

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Solution

The fourth proportional to 25,140.78, 34,683.66 and 15,066 is: 20,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.78 : 34,683.66 = 15,066 : x
  2. Step 2: Convert to fraction form
    25,140.78/34,683.66 = 15,066/x
  3. Step 3: Cross multiply
    25,140.78x = 34,683.66 × 15,066
  4. Step 4: Simplify right side
    25,140.78x = 522,544,021.56
  5. Step 5: Solve for x
    x = 522,544,021.56/25,140.78
  6. Step 6: Final answer
    x = 20,784.72

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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.