Home / 21,985.74-30,344.22-16,671.60

Finding the Fourth Proportional to 21,985.74, 30,344.22 and 16,671.60

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Solution

The fourth proportional to 21,985.74, 30,344.22 and 16,671.60 is: 23,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985.74 : 30,344.22 = 16,671.60 : x
  2. Step 2: Convert to fraction form
    21,985.74/30,344.22 = 16,671.60/x
  3. Step 3: Cross multiply
    21,985.74x = 30,344.22 × 16,671.60
  4. Step 4: Simplify right side
    21,985.74x = 505,886,698.15
  5. Step 5: Solve for x
    x = 505,886,698.15/21,985.74
  6. Step 6: Final answer
    x = 23,009.76

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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.