Home / 30,939.18-46,401.32-14,283.22

Finding the Fourth Proportional to 30,939.18, 46,401.32 and 14,283.22

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Solution

The fourth proportional to 30,939.18, 46,401.32 and 14,283.22 is: 21,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.18 : 46,401.32 = 14,283.22 : x
  2. Step 2: Convert to fraction form
    30,939.18/46,401.32 = 14,283.22/x
  3. Step 3: Cross multiply
    30,939.18x = 46,401.32 × 14,283.22
  4. Step 4: Simplify right side
    30,939.18x = 662,760,067.77
  5. Step 5: Solve for x
    x = 662,760,067.77/30,939.18
  6. Step 6: Final answer
    x = 21,421.39

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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.