Home / 21,581.32-29,770.86-14,017.54

Finding the Fourth Proportional to 21,581.32, 29,770.86 and 14,017.54

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Solution

The fourth proportional to 21,581.32, 29,770.86 and 14,017.54 is: 19,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.32 : 29,770.86 = 14,017.54 : x
  2. Step 2: Convert to fraction form
    21,581.32/29,770.86 = 14,017.54/x
  3. Step 3: Cross multiply
    21,581.32x = 29,770.86 × 14,017.54
  4. Step 4: Simplify right side
    21,581.32x = 417,314,220.88
  5. Step 5: Solve for x
    x = 417,314,220.88/21,581.32
  6. Step 6: Final answer
    x = 19,336.83

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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.