Home / 30,216-45,280.20-17,040.36

Finding the Fourth Proportional to 30,216, 45,280.20 and 17,040.36

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Solution

The fourth proportional to 30,216, 45,280.20 and 17,040.36 is: 25,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216 : 45,280.20 = 17,040.36 : x
  2. Step 2: Convert to fraction form
    30,216/45,280.20 = 17,040.36/x
  3. Step 3: Cross multiply
    30,216x = 45,280.20 × 17,040.36
  4. Step 4: Simplify right side
    30,216x = 771,590,908.87
  5. Step 5: Solve for x
    x = 771,590,908.87/30,216
  6. Step 6: Final answer
    x = 25,535.84

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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.