Home / 20,998.83-31,498.32-14,405.03

Finding the Fourth Proportional to 20,998.83, 31,498.32 and 14,405.03

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Solution

The fourth proportional to 20,998.83, 31,498.32 and 14,405.03 is: 21,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.83 : 31,498.32 = 14,405.03 : x
  2. Step 2: Convert to fraction form
    20,998.83/31,498.32 = 14,405.03/x
  3. Step 3: Cross multiply
    20,998.83x = 31,498.32 × 14,405.03
  4. Step 4: Simplify right side
    20,998.83x = 453,734,244.55
  5. Step 5: Solve for x
    x = 453,734,244.55/20,998.83
  6. Step 6: Final answer
    x = 21,607.60

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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.