Home / 31,328.40-43,232.84-17,181.20

Finding the Fourth Proportional to 31,328.40, 43,232.84 and 17,181.20

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Solution

The fourth proportional to 31,328.40, 43,232.84 and 17,181.20 is: 23,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.40 : 43,232.84 = 17,181.20 : x
  2. Step 2: Convert to fraction form
    31,328.40/43,232.84 = 17,181.20/x
  3. Step 3: Cross multiply
    31,328.40x = 43,232.84 × 17,181.20
  4. Step 4: Simplify right side
    31,328.40x = 742,792,070.61
  5. Step 5: Solve for x
    x = 742,792,070.61/31,328.40
  6. Step 6: Final answer
    x = 23,709.86

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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.