Home / 30,870.85-46,278.77-11,145.02

Finding the Fourth Proportional to 30,870.85, 46,278.77 and 11,145.02

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Solution

The fourth proportional to 30,870.85, 46,278.77 and 11,145.02 is: 16,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,870.85 : 46,278.77 = 11,145.02 : x
  2. Step 2: Convert to fraction form
    30,870.85/46,278.77 = 11,145.02/x
  3. Step 3: Cross multiply
    30,870.85x = 46,278.77 × 11,145.02
  4. Step 4: Simplify right side
    30,870.85x = 515,777,585.83
  5. Step 5: Solve for x
    x = 515,777,585.83/30,870.85
  6. Step 6: Final answer
    x = 16,707.59

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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.