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Finding the Fourth Proportional to 30,680.88, 46,011.46 and 9,899.52

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Solution

The fourth proportional to 30,680.88, 46,011.46 and 9,899.52 is: 14,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.88 : 46,011.46 = 9,899.52 : x
  2. Step 2: Convert to fraction form
    30,680.88/46,011.46 = 9,899.52/x
  3. Step 3: Cross multiply
    30,680.88x = 46,011.46 × 9,899.52
  4. Step 4: Simplify right side
    30,680.88x = 455,491,368.50
  5. Step 5: Solve for x
    x = 455,491,368.50/30,680.88
  6. Step 6: Final answer
    x = 14,846.10

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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.