Home / 18,739.80-25,848.90-14,759.28

Finding the Fourth Proportional to 18,739.80, 25,848.90 and 14,759.28

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Solution

The fourth proportional to 18,739.80, 25,848.90 and 14,759.28 is: 20,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.80 : 25,848.90 = 14,759.28 : x
  2. Step 2: Convert to fraction form
    18,739.80/25,848.90 = 14,759.28/x
  3. Step 3: Cross multiply
    18,739.80x = 25,848.90 × 14,759.28
  4. Step 4: Simplify right side
    18,739.80x = 381,511,152.79
  5. Step 5: Solve for x
    x = 381,511,152.79/18,739.80
  6. Step 6: Final answer
    x = 20,358.34

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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.