Home / 38,531.64-53,172.60-21,535.98

Finding the Fourth Proportional to 38,531.64, 53,172.60 and 21,535.98

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Solution

The fourth proportional to 38,531.64, 53,172.60 and 21,535.98 is: 29,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,531.64 : 53,172.60 = 21,535.98 : x
  2. Step 2: Convert to fraction form
    38,531.64/53,172.60 = 21,535.98/x
  3. Step 3: Cross multiply
    38,531.64x = 53,172.60 × 21,535.98
  4. Step 4: Simplify right side
    38,531.64x = 1,145,124,050.15
  5. Step 5: Solve for x
    x = 1,145,124,050.15/38,531.64
  6. Step 6: Final answer
    x = 29,719.06

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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.