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Finding the Fourth Proportional to 48,506.46, 72,728.22 and 18,927.30

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Solution

The fourth proportional to 48,506.46, 72,728.22 and 18,927.30 is: 28,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,506.46 : 72,728.22 = 18,927.30 : x
  2. Step 2: Convert to fraction form
    48,506.46/72,728.22 = 18,927.30/x
  3. Step 3: Cross multiply
    48,506.46x = 72,728.22 × 18,927.30
  4. Step 4: Simplify right side
    48,506.46x = 1,376,548,838.41
  5. Step 5: Solve for x
    x = 1,376,548,838.41/48,506.46
  6. Step 6: Final answer
    x = 28,378.67

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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.