Home / 30,783.98-46,044.75-18,908.57

Finding the Fourth Proportional to 30,783.98, 46,044.75 and 18,908.57

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Solution

The fourth proportional to 30,783.98, 46,044.75 and 18,908.57 is: 28,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783.98 : 46,044.75 = 18,908.57 : x
  2. Step 2: Convert to fraction form
    30,783.98/46,044.75 = 18,908.57/x
  3. Step 3: Cross multiply
    30,783.98x = 46,044.75 × 18,908.57
  4. Step 4: Simplify right side
    30,783.98x = 870,640,148.28
  5. Step 5: Solve for x
    x = 870,640,148.28/30,783.98
  6. Step 6: Final answer
    x = 28,282.25

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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.