Home / 30,289.82-45,437.69-11,585.57

Finding the Fourth Proportional to 30,289.82, 45,437.69 and 11,585.57

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Solution

The fourth proportional to 30,289.82, 45,437.69 and 11,585.57 is: 17,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.82 : 45,437.69 = 11,585.57 : x
  2. Step 2: Convert to fraction form
    30,289.82/45,437.69 = 11,585.57/x
  3. Step 3: Cross multiply
    30,289.82x = 45,437.69 × 11,585.57
  4. Step 4: Simplify right side
    30,289.82x = 526,421,339.91
  5. Step 5: Solve for x
    x = 526,421,339.91/30,289.82
  6. Step 6: Final answer
    x = 17,379.48

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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.