Home / 30,974.44-42,741.10-18,224.83

Finding the Fourth Proportional to 30,974.44, 42,741.10 and 18,224.83

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Solution

The fourth proportional to 30,974.44, 42,741.10 and 18,224.83 is: 25,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.44 : 42,741.10 = 18,224.83 : x
  2. Step 2: Convert to fraction form
    30,974.44/42,741.10 = 18,224.83/x
  3. Step 3: Cross multiply
    30,974.44x = 42,741.10 × 18,224.83
  4. Step 4: Simplify right side
    30,974.44x = 778,949,281.51
  5. Step 5: Solve for x
    x = 778,949,281.51/30,974.44
  6. Step 6: Final answer
    x = 25,148.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.