Home / 43,915.84-65,868.30-12,328.38

Finding the Fourth Proportional to 43,915.84, 65,868.30 and 12,328.38

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Solution

The fourth proportional to 43,915.84, 65,868.30 and 12,328.38 is: 18,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,915.84 : 65,868.30 = 12,328.38 : x
  2. Step 2: Convert to fraction form
    43,915.84/65,868.30 = 12,328.38/x
  3. Step 3: Cross multiply
    43,915.84x = 65,868.30 × 12,328.38
  4. Step 4: Simplify right side
    43,915.84x = 812,049,432.35
  5. Step 5: Solve for x
    x = 812,049,432.35/43,915.84
  6. Step 6: Final answer
    x = 18,491.04

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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.