Home / 30,947.38-46,440.58-13,178.02

Finding the Fourth Proportional to 30,947.38, 46,440.58 and 13,178.02

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Solution

The fourth proportional to 30,947.38, 46,440.58 and 13,178.02 is: 19,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.38 : 46,440.58 = 13,178.02 : x
  2. Step 2: Convert to fraction form
    30,947.38/46,440.58 = 13,178.02/x
  3. Step 3: Cross multiply
    30,947.38x = 46,440.58 × 13,178.02
  4. Step 4: Simplify right side
    30,947.38x = 611,994,892.05
  5. Step 5: Solve for x
    x = 611,994,892.05/30,947.38
  6. Step 6: Final answer
    x = 19,775.34

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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.