Home / 21,216.48-29,181.36-17,015.52

Finding the Fourth Proportional to 21,216.48, 29,181.36 and 17,015.52

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Solution

The fourth proportional to 21,216.48, 29,181.36 and 17,015.52 is: 23,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216.48 : 29,181.36 = 17,015.52 : x
  2. Step 2: Convert to fraction form
    21,216.48/29,181.36 = 17,015.52/x
  3. Step 3: Cross multiply
    21,216.48x = 29,181.36 × 17,015.52
  4. Step 4: Simplify right side
    21,216.48x = 496,536,014.71
  5. Step 5: Solve for x
    x = 496,536,014.71/21,216.48
  6. Step 6: Final answer
    x = 23,403.32

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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.