Home / 30,414.84-45,622.32-9,638.28

Finding the Fourth Proportional to 30,414.84, 45,622.32 and 9,638.28

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Solution

The fourth proportional to 30,414.84, 45,622.32 and 9,638.28 is: 14,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,414.84 : 45,622.32 = 9,638.28 : x
  2. Step 2: Convert to fraction form
    30,414.84/45,622.32 = 9,638.28/x
  3. Step 3: Cross multiply
    30,414.84x = 45,622.32 × 9,638.28
  4. Step 4: Simplify right side
    30,414.84x = 439,720,694.41
  5. Step 5: Solve for x
    x = 439,720,694.41/30,414.84
  6. Step 6: Final answer
    x = 14,457.44

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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.