Home / 30,081.29-45,121.37-10,359.41

Finding the Fourth Proportional to 30,081.29, 45,121.37 and 10,359.41

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Solution

The fourth proportional to 30,081.29, 45,121.37 and 10,359.41 is: 15,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.29 : 45,121.37 = 10,359.41 : x
  2. Step 2: Convert to fraction form
    30,081.29/45,121.37 = 10,359.41/x
  3. Step 3: Cross multiply
    30,081.29x = 45,121.37 × 10,359.41
  4. Step 4: Simplify right side
    30,081.29x = 467,430,494.19
  5. Step 5: Solve for x
    x = 467,430,494.19/30,081.29
  6. Step 6: Final answer
    x = 15,538.91

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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.