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Finding the Fourth Proportional to 30,596.70, 45,807.45 and 18,830.70

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Solution

The fourth proportional to 30,596.70, 45,807.45 and 18,830.70 is: 28,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,596.70 : 45,807.45 = 18,830.70 : x
  2. Step 2: Convert to fraction form
    30,596.70/45,807.45 = 18,830.70/x
  3. Step 3: Cross multiply
    30,596.70x = 45,807.45 × 18,830.70
  4. Step 4: Simplify right side
    30,596.70x = 862,586,348.72
  5. Step 5: Solve for x
    x = 862,586,348.72/30,596.70
  6. Step 6: Final answer
    x = 28,192.14

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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.