Home / 30,269.44-45,438.18-12,754

Finding the Fourth Proportional to 30,269.44, 45,438.18 and 12,754

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Solution

The fourth proportional to 30,269.44, 45,438.18 and 12,754 is: 19,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.44 : 45,438.18 = 12,754 : x
  2. Step 2: Convert to fraction form
    30,269.44/45,438.18 = 12,754/x
  3. Step 3: Cross multiply
    30,269.44x = 45,438.18 × 12,754
  4. Step 4: Simplify right side
    30,269.44x = 579,518,547.72
  5. Step 5: Solve for x
    x = 579,518,547.72/30,269.44
  6. Step 6: Final answer
    x = 19,145.33

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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.