Home / 21,441.02-29,590.44-12,489.36

Finding the Fourth Proportional to 21,441.02, 29,590.44 and 12,489.36

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Solution

The fourth proportional to 21,441.02, 29,590.44 and 12,489.36 is: 17,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.02 : 29,590.44 = 12,489.36 : x
  2. Step 2: Convert to fraction form
    21,441.02/29,590.44 = 12,489.36/x
  3. Step 3: Cross multiply
    21,441.02x = 29,590.44 × 12,489.36
  4. Step 4: Simplify right side
    21,441.02x = 369,565,657.72
  5. Step 5: Solve for x
    x = 369,565,657.72/21,441.02
  6. Step 6: Final answer
    x = 17,236.38

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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.