Home / 30,516.30-45,780.99-9,455.88

Finding the Fourth Proportional to 30,516.30, 45,780.99 and 9,455.88

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Solution

The fourth proportional to 30,516.30, 45,780.99 and 9,455.88 is: 14,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.30 : 45,780.99 = 9,455.88 : x
  2. Step 2: Convert to fraction form
    30,516.30/45,780.99 = 9,455.88/x
  3. Step 3: Cross multiply
    30,516.30x = 45,780.99 × 9,455.88
  4. Step 4: Simplify right side
    30,516.30x = 432,899,547.72
  5. Step 5: Solve for x
    x = 432,899,547.72/30,516.30
  6. Step 6: Final answer
    x = 14,185.85

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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.