Home / 21,783.24-30,064.86-14,235.84

Finding the Fourth Proportional to 21,783.24, 30,064.86 and 14,235.84

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Solution

The fourth proportional to 21,783.24, 30,064.86 and 14,235.84 is: 19,648.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.24 : 30,064.86 = 14,235.84 : x
  2. Step 2: Convert to fraction form
    21,783.24/30,064.86 = 14,235.84/x
  3. Step 3: Cross multiply
    21,783.24x = 30,064.86 × 14,235.84
  4. Step 4: Simplify right side
    21,783.24x = 427,998,536.58
  5. Step 5: Solve for x
    x = 427,998,536.58/21,783.24
  6. Step 6: Final answer
    x = 19,648.07

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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.