Home / 30,689.20-46,033.80-9,912.70

Finding the Fourth Proportional to 30,689.20, 46,033.80 and 9,912.70

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Solution

The fourth proportional to 30,689.20, 46,033.80 and 9,912.70 is: 14,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,689.20 : 46,033.80 = 9,912.70 : x
  2. Step 2: Convert to fraction form
    30,689.20/46,033.80 = 9,912.70/x
  3. Step 3: Cross multiply
    30,689.20x = 46,033.80 × 9,912.70
  4. Step 4: Simplify right side
    30,689.20x = 456,319,249.26
  5. Step 5: Solve for x
    x = 456,319,249.26/30,689.20
  6. Step 6: Final answer
    x = 14,869.05

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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.