Home / 43,920.04-65,880.60-12,328.30

Finding the Fourth Proportional to 43,920.04, 65,880.60 and 12,328.30

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Solution

The fourth proportional to 43,920.04, 65,880.60 and 12,328.30 is: 18,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,920.04 : 65,880.60 = 12,328.30 : x
  2. Step 2: Convert to fraction form
    43,920.04/65,880.60 = 12,328.30/x
  3. Step 3: Cross multiply
    43,920.04x = 65,880.60 × 12,328.30
  4. Step 4: Simplify right side
    43,920.04x = 812,195,800.98
  5. Step 5: Solve for x
    x = 812,195,800.98/43,920.04
  6. Step 6: Final answer
    x = 18,492.60

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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.