Home / 30,379.04-45,568.57-10,388.68

Finding the Fourth Proportional to 30,379.04, 45,568.57 and 10,388.68

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Solution

The fourth proportional to 30,379.04, 45,568.57 and 10,388.68 is: 15,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.04 : 45,568.57 = 10,388.68 : x
  2. Step 2: Convert to fraction form
    30,379.04/45,568.57 = 10,388.68/x
  3. Step 3: Cross multiply
    30,379.04x = 45,568.57 × 10,388.68
  4. Step 4: Simplify right side
    30,379.04x = 473,397,291.79
  5. Step 5: Solve for x
    x = 473,397,291.79/30,379.04
  6. Step 6: Final answer
    x = 15,583.02

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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.