Home / 30,389.15-45,433.87-25,760.81

Finding the Fourth Proportional to 30,389.15, 45,433.87 and 25,760.81

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Solution

The fourth proportional to 30,389.15, 45,433.87 and 25,760.81 is: 38,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.15 : 45,433.87 = 25,760.81 : x
  2. Step 2: Convert to fraction form
    30,389.15/45,433.87 = 25,760.81/x
  3. Step 3: Cross multiply
    30,389.15x = 45,433.87 × 25,760.81
  4. Step 4: Simplify right side
    30,389.15x = 1,170,413,292.63
  5. Step 5: Solve for x
    x = 1,170,413,292.63/30,389.15
  6. Step 6: Final answer
    x = 38,514.18

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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.