Home / 30,944.16-42,683.52-18,360

Finding the Fourth Proportional to 30,944.16, 42,683.52 and 18,360

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Solution

The fourth proportional to 30,944.16, 42,683.52 and 18,360 is: 25,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,944.16 : 42,683.52 = 18,360 : x
  2. Step 2: Convert to fraction form
    30,944.16/42,683.52 = 18,360/x
  3. Step 3: Cross multiply
    30,944.16x = 42,683.52 × 18,360
  4. Step 4: Simplify right side
    30,944.16x = 783,669,427.20
  5. Step 5: Solve for x
    x = 783,669,427.20/30,944.16
  6. Step 6: Final answer
    x = 25,325.28

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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.