Home / 21,838.51-32,770.46-9,187.34

Finding the Fourth Proportional to 21,838.51, 32,770.46 and 9,187.34

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Solution

The fourth proportional to 21,838.51, 32,770.46 and 9,187.34 is: 13,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.51 : 32,770.46 = 9,187.34 : x
  2. Step 2: Convert to fraction form
    21,838.51/32,770.46 = 9,187.34/x
  3. Step 3: Cross multiply
    21,838.51x = 32,770.46 × 9,187.34
  4. Step 4: Simplify right side
    21,838.51x = 301,073,165.41
  5. Step 5: Solve for x
    x = 301,073,165.41/21,838.51
  6. Step 6: Final answer
    x = 13,786.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.