Home / 30,680.71-46,021.65-9,620.29

Finding the Fourth Proportional to 30,680.71, 46,021.65 and 9,620.29

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Solution

The fourth proportional to 30,680.71, 46,021.65 and 9,620.29 is: 14,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.71 : 46,021.65 = 9,620.29 : x
  2. Step 2: Convert to fraction form
    30,680.71/46,021.65 = 9,620.29/x
  3. Step 3: Cross multiply
    30,680.71x = 46,021.65 × 9,620.29
  4. Step 4: Simplify right side
    30,680.71x = 442,741,619.28
  5. Step 5: Solve for x
    x = 442,741,619.28/30,680.71
  6. Step 6: Final answer
    x = 14,430.62

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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.