Home / 30,743.46-46,106.07-13,209.21

Finding the Fourth Proportional to 30,743.46, 46,106.07 and 13,209.21

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Solution

The fourth proportional to 30,743.46, 46,106.07 and 13,209.21 is: 19,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743.46 : 46,106.07 = 13,209.21 : x
  2. Step 2: Convert to fraction form
    30,743.46/46,106.07 = 13,209.21/x
  3. Step 3: Cross multiply
    30,743.46x = 46,106.07 × 13,209.21
  4. Step 4: Simplify right side
    30,743.46x = 609,024,760.90
  5. Step 5: Solve for x
    x = 609,024,760.90/30,743.46
  6. Step 6: Final answer
    x = 19,809.90

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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.