Home / 30,917.20-46,401.40-14,302.80

Finding the Fourth Proportional to 30,917.20, 46,401.40 and 14,302.80

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Solution

The fourth proportional to 30,917.20, 46,401.40 and 14,302.80 is: 21,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.20 : 46,401.40 = 14,302.80 : x
  2. Step 2: Convert to fraction form
    30,917.20/46,401.40 = 14,302.80/x
  3. Step 3: Cross multiply
    30,917.20x = 46,401.40 × 14,302.80
  4. Step 4: Simplify right side
    30,917.20x = 663,669,943.92
  5. Step 5: Solve for x
    x = 663,669,943.92/30,917.20
  6. Step 6: Final answer
    x = 21,466.04

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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.