Home / 30,278.37-45,433.35-17,156.37

Finding the Fourth Proportional to 30,278.37, 45,433.35 and 17,156.37

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Solution

The fourth proportional to 30,278.37, 45,433.35 and 17,156.37 is: 25,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.37 : 45,433.35 = 17,156.37 : x
  2. Step 2: Convert to fraction form
    30,278.37/45,433.35 = 17,156.37/x
  3. Step 3: Cross multiply
    30,278.37x = 45,433.35 × 17,156.37
  4. Step 4: Simplify right side
    30,278.37x = 779,471,362.94
  5. Step 5: Solve for x
    x = 779,471,362.94/30,278.37
  6. Step 6: Final answer
    x = 25,743.50

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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.