Home / 30,010.87-45,011.67-10,020.70

Finding the Fourth Proportional to 30,010.87, 45,011.67 and 10,020.70

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Solution

The fourth proportional to 30,010.87, 45,011.67 and 10,020.70 is: 15,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.87 : 45,011.67 = 10,020.70 : x
  2. Step 2: Convert to fraction form
    30,010.87/45,011.67 = 10,020.70/x
  3. Step 3: Cross multiply
    30,010.87x = 45,011.67 × 10,020.70
  4. Step 4: Simplify right side
    30,010.87x = 451,048,441.57
  5. Step 5: Solve for x
    x = 451,048,441.57/30,010.87
  6. Step 6: Final answer
    x = 15,029.50

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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.