Home / 30,972.53-42,739.93-17,174.74

Finding the Fourth Proportional to 30,972.53, 42,739.93 and 17,174.74

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Solution

The fourth proportional to 30,972.53, 42,739.93 and 17,174.74 is: 23,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.53 : 42,739.93 = 17,174.74 : x
  2. Step 2: Convert to fraction form
    30,972.53/42,739.93 = 17,174.74/x
  3. Step 3: Cross multiply
    30,972.53x = 42,739.93 × 17,174.74
  4. Step 4: Simplify right side
    30,972.53x = 734,047,185.37
  5. Step 5: Solve for x
    x = 734,047,185.37/30,972.53
  6. Step 6: Final answer
    x = 23,699.94

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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.