Home / 21,830.37-32,718.15-9,335.70

Finding the Fourth Proportional to 21,830.37, 32,718.15 and 9,335.70

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Solution

The fourth proportional to 21,830.37, 32,718.15 and 9,335.70 is: 13,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.37 : 32,718.15 = 9,335.70 : x
  2. Step 2: Convert to fraction form
    21,830.37/32,718.15 = 9,335.70/x
  3. Step 3: Cross multiply
    21,830.37x = 32,718.15 × 9,335.70
  4. Step 4: Simplify right side
    21,830.37x = 305,446,832.96
  5. Step 5: Solve for x
    x = 305,446,832.96/21,830.37
  6. Step 6: Final answer
    x = 13,991.83

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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.