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Finding the Fourth Proportional to 30,804.56, 42,510.08 and 17,375.93

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Solution

The fourth proportional to 30,804.56, 42,510.08 and 17,375.93 is: 23,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.56 : 42,510.08 = 17,375.93 : x
  2. Step 2: Convert to fraction form
    30,804.56/42,510.08 = 17,375.93/x
  3. Step 3: Cross multiply
    30,804.56x = 42,510.08 × 17,375.93
  4. Step 4: Simplify right side
    30,804.56x = 738,652,174.37
  5. Step 5: Solve for x
    x = 738,652,174.37/30,804.56
  6. Step 6: Final answer
    x = 23,978.66

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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.