Home / 48,915.20-73,380.90-20,848.70

Finding the Fourth Proportional to 48,915.20, 73,380.90 and 20,848.70

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Solution

The fourth proportional to 48,915.20, 73,380.90 and 20,848.70 is: 31,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,915.20 : 73,380.90 = 20,848.70 : x
  2. Step 2: Convert to fraction form
    48,915.20/73,380.90 = 20,848.70/x
  3. Step 3: Cross multiply
    48,915.20x = 73,380.90 × 20,848.70
  4. Step 4: Simplify right side
    48,915.20x = 1,529,896,369.83
  5. Step 5: Solve for x
    x = 1,529,896,369.83/48,915.20
  6. Step 6: Final answer
    x = 31,276.50

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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.