Home / 20,599.13-30,880.37-7,448.58

Finding the Fourth Proportional to 20,599.13, 30,880.37 and 7,448.58

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Solution

The fourth proportional to 20,599.13, 30,880.37 and 7,448.58 is: 11,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.13 : 30,880.37 = 7,448.58 : x
  2. Step 2: Convert to fraction form
    20,599.13/30,880.37 = 7,448.58/x
  3. Step 3: Cross multiply
    20,599.13x = 30,880.37 × 7,448.58
  4. Step 4: Simplify right side
    20,599.13x = 230,014,869.13
  5. Step 5: Solve for x
    x = 230,014,869.13/20,599.13
  6. Step 6: Final answer
    x = 11,166.24

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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.