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Finding the Fourth Proportional to 30,443.80, 45,672.90 and 9,667.30

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Solution

The fourth proportional to 30,443.80, 45,672.90 and 9,667.30 is: 14,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.80 : 45,672.90 = 9,667.30 : x
  2. Step 2: Convert to fraction form
    30,443.80/45,672.90 = 9,667.30/x
  3. Step 3: Cross multiply
    30,443.80x = 45,672.90 × 9,667.30
  4. Step 4: Simplify right side
    30,443.80x = 441,533,626.17
  5. Step 5: Solve for x
    x = 441,533,626.17/30,443.80
  6. Step 6: Final answer
    x = 14,503.24

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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.