Home / 30,983.94-46,478.97-9,918.68

Finding the Fourth Proportional to 30,983.94, 46,478.97 and 9,918.68

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Solution

The fourth proportional to 30,983.94, 46,478.97 and 9,918.68 is: 14,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.94 : 46,478.97 = 9,918.68 : x
  2. Step 2: Convert to fraction form
    30,983.94/46,478.97 = 9,918.68/x
  3. Step 3: Cross multiply
    30,983.94x = 46,478.97 × 9,918.68
  4. Step 4: Simplify right side
    30,983.94x = 461,009,797.76
  5. Step 5: Solve for x
    x = 461,009,797.76/30,983.94
  6. Step 6: Final answer
    x = 14,878.99

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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.