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Finding the Fourth Proportional to 30,295.84, 45,445.68 and 9,520.16

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Solution

The fourth proportional to 30,295.84, 45,445.68 and 9,520.16 is: 14,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.84 : 45,445.68 = 9,520.16 : x
  2. Step 2: Convert to fraction form
    30,295.84/45,445.68 = 9,520.16/x
  3. Step 3: Cross multiply
    30,295.84x = 45,445.68 × 9,520.16
  4. Step 4: Simplify right side
    30,295.84x = 432,650,144.91
  5. Step 5: Solve for x
    x = 432,650,144.91/30,295.84
  6. Step 6: Final answer
    x = 14,280.84

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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.