Home / 32,912.10-49,368.15-18,915.30

Finding the Fourth Proportional to 32,912.10, 49,368.15 and 18,915.30

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Solution

The fourth proportional to 32,912.10, 49,368.15 and 18,915.30 is: 28,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,912.10 : 49,368.15 = 18,915.30 : x
  2. Step 2: Convert to fraction form
    32,912.10/49,368.15 = 18,915.30/x
  3. Step 3: Cross multiply
    32,912.10x = 49,368.15 × 18,915.30
  4. Step 4: Simplify right side
    32,912.10x = 933,813,367.70
  5. Step 5: Solve for x
    x = 933,813,367.70/32,912.10
  6. Step 6: Final answer
    x = 28,372.95

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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.