Home / 21,873.48-30,157.83-14,307.84

Finding the Fourth Proportional to 21,873.48, 30,157.83 and 14,307.84

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Solution

The fourth proportional to 21,873.48, 30,157.83 and 14,307.84 is: 19,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.48 : 30,157.83 = 14,307.84 : x
  2. Step 2: Convert to fraction form
    21,873.48/30,157.83 = 14,307.84/x
  3. Step 3: Cross multiply
    21,873.48x = 30,157.83 × 14,307.84
  4. Step 4: Simplify right side
    21,873.48x = 431,493,406.39
  5. Step 5: Solve for x
    x = 431,493,406.39/21,873.48
  6. Step 6: Final answer
    x = 19,726.78

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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.