Home / 30,747.89-46,017.59-18,909.11

Finding the Fourth Proportional to 30,747.89, 46,017.59 and 18,909.11

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Solution

The fourth proportional to 30,747.89, 46,017.59 and 18,909.11 is: 28,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,747.89 : 46,017.59 = 18,909.11 : x
  2. Step 2: Convert to fraction form
    30,747.89/46,017.59 = 18,909.11/x
  3. Step 3: Cross multiply
    30,747.89x = 46,017.59 × 18,909.11
  4. Step 4: Simplify right side
    30,747.89x = 870,151,576.70
  5. Step 5: Solve for x
    x = 870,151,576.70/30,747.89
  6. Step 6: Final answer
    x = 28,299.55

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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.