Home / 30,732.50-42,415.08-17,309.18

Finding the Fourth Proportional to 30,732.50, 42,415.08 and 17,309.18

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Solution

The fourth proportional to 30,732.50, 42,415.08 and 17,309.18 is: 23,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.50 : 42,415.08 = 17,309.18 : x
  2. Step 2: Convert to fraction form
    30,732.50/42,415.08 = 17,309.18/x
  3. Step 3: Cross multiply
    30,732.50x = 42,415.08 × 17,309.18
  4. Step 4: Simplify right side
    30,732.50x = 734,170,295.56
  5. Step 5: Solve for x
    x = 734,170,295.56/30,732.50
  6. Step 6: Final answer
    x = 23,889.05

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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.