Home / 29,889.81-41,261.62-21,281.57

Finding the Fourth Proportional to 29,889.81, 41,261.62 and 21,281.57

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Solution

The fourth proportional to 29,889.81, 41,261.62 and 21,281.57 is: 29,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,889.81 : 41,261.62 = 21,281.57 : x
  2. Step 2: Convert to fraction form
    29,889.81/41,261.62 = 21,281.57/x
  3. Step 3: Cross multiply
    29,889.81x = 41,261.62 × 21,281.57
  4. Step 4: Simplify right side
    29,889.81x = 878,112,054.34
  5. Step 5: Solve for x
    x = 878,112,054.34/29,889.81
  6. Step 6: Final answer
    x = 29,378.31

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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.