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Finding the Fourth Proportional to 30,337.20, 45,505.80 and 29,948.40

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Solution

The fourth proportional to 30,337.20, 45,505.80 and 29,948.40 is: 44,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,337.20 : 45,505.80 = 29,948.40 : x
  2. Step 2: Convert to fraction form
    30,337.20/45,505.80 = 29,948.40/x
  3. Step 3: Cross multiply
    30,337.20x = 45,505.80 × 29,948.40
  4. Step 4: Simplify right side
    30,337.20x = 1,362,825,900.72
  5. Step 5: Solve for x
    x = 1,362,825,900.72/30,337.20
  6. Step 6: Final answer
    x = 44,922.60

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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.