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Finding the Fourth Proportional to 30,249.64, 45,312.04 and 17,731.65

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Solution

The fourth proportional to 30,249.64, 45,312.04 and 17,731.65 is: 26,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.64 : 45,312.04 = 17,731.65 : x
  2. Step 2: Convert to fraction form
    30,249.64/45,312.04 = 17,731.65/x
  3. Step 3: Cross multiply
    30,249.64x = 45,312.04 × 17,731.65
  4. Step 4: Simplify right side
    30,249.64x = 803,457,234.07
  5. Step 5: Solve for x
    x = 803,457,234.07/30,249.64
  6. Step 6: Final answer
    x = 26,560.89

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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.