Home / 30,895.20-46,342.80-18,429.30

Finding the Fourth Proportional to 30,895.20, 46,342.80 and 18,429.30

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Solution

The fourth proportional to 30,895.20, 46,342.80 and 18,429.30 is: 27,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,895.20 : 46,342.80 = 18,429.30 : x
  2. Step 2: Convert to fraction form
    30,895.20/46,342.80 = 18,429.30/x
  3. Step 3: Cross multiply
    30,895.20x = 46,342.80 × 18,429.30
  4. Step 4: Simplify right side
    30,895.20x = 854,065,364.04
  5. Step 5: Solve for x
    x = 854,065,364.04/30,895.20
  6. Step 6: Final answer
    x = 27,643.95

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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.