Home / 30,131.10-41,580.20-17,384.31

Finding the Fourth Proportional to 30,131.10, 41,580.20 and 17,384.31

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Solution

The fourth proportional to 30,131.10, 41,580.20 and 17,384.31 is: 23,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.10 : 41,580.20 = 17,384.31 : x
  2. Step 2: Convert to fraction form
    30,131.10/41,580.20 = 17,384.31/x
  3. Step 3: Cross multiply
    30,131.10x = 41,580.20 × 17,384.31
  4. Step 4: Simplify right side
    30,131.10x = 722,843,130.12
  5. Step 5: Solve for x
    x = 722,843,130.12/30,131.10
  6. Step 6: Final answer
    x = 23,989.93

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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.