Home / 30,933.12-46,406.88-10,155.36

Finding the Fourth Proportional to 30,933.12, 46,406.88 and 10,155.36

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Solution

The fourth proportional to 30,933.12, 46,406.88 and 10,155.36 is: 15,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,933.12 : 46,406.88 = 10,155.36 : x
  2. Step 2: Convert to fraction form
    30,933.12/46,406.88 = 10,155.36/x
  3. Step 3: Cross multiply
    30,933.12x = 46,406.88 × 10,155.36
  4. Step 4: Simplify right side
    30,933.12x = 471,278,572.88
  5. Step 5: Solve for x
    x = 471,278,572.88/30,933.12
  6. Step 6: Final answer
    x = 15,235.40

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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.