Home / 30,999.40-46,498.49-10,222.90

Finding the Fourth Proportional to 30,999.40, 46,498.49 and 10,222.90

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Solution

The fourth proportional to 30,999.40, 46,498.49 and 10,222.90 is: 15,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.40 : 46,498.49 = 10,222.90 : x
  2. Step 2: Convert to fraction form
    30,999.40/46,498.49 = 10,222.90/x
  3. Step 3: Cross multiply
    30,999.40x = 46,498.49 × 10,222.90
  4. Step 4: Simplify right side
    30,999.40x = 475,349,284.40
  5. Step 5: Solve for x
    x = 475,349,284.40/30,999.40
  6. Step 6: Final answer
    x = 15,334.15

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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.