Home / 21,415.17-32,114.73-7,371.21

Finding the Fourth Proportional to 21,415.17, 32,114.73 and 7,371.21

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Solution

The fourth proportional to 21,415.17, 32,114.73 and 7,371.21 is: 11,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.17 : 32,114.73 = 7,371.21 : x
  2. Step 2: Convert to fraction form
    21,415.17/32,114.73 = 7,371.21/x
  3. Step 3: Cross multiply
    21,415.17x = 32,114.73 × 7,371.21
  4. Step 4: Simplify right side
    21,415.17x = 236,724,418.92
  5. Step 5: Solve for x
    x = 236,724,418.92/21,415.17
  6. Step 6: Final answer
    x = 11,054.05

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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.