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Finding the Fourth Proportional to 30,246.30, 45,304.65 and 19,748.70

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Solution

The fourth proportional to 30,246.30, 45,304.65 and 19,748.70 is: 29,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.30 : 45,304.65 = 19,748.70 : x
  2. Step 2: Convert to fraction form
    30,246.30/45,304.65 = 19,748.70/x
  3. Step 3: Cross multiply
    30,246.30x = 45,304.65 × 19,748.70
  4. Step 4: Simplify right side
    30,246.30x = 894,707,941.46
  5. Step 5: Solve for x
    x = 894,707,941.46/30,246.30
  6. Step 6: Final answer
    x = 29,580.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.