Home / 25,698.56-35,458.08-15,087.68

Finding the Fourth Proportional to 25,698.56, 35,458.08 and 15,087.68

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Solution

The fourth proportional to 25,698.56, 35,458.08 and 15,087.68 is: 20,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.56 : 35,458.08 = 15,087.68 : x
  2. Step 2: Convert to fraction form
    25,698.56/35,458.08 = 15,087.68/x
  3. Step 3: Cross multiply
    25,698.56x = 35,458.08 × 15,087.68
  4. Step 4: Simplify right side
    25,698.56x = 534,980,164.45
  5. Step 5: Solve for x
    x = 534,980,164.45/25,698.56
  6. Step 6: Final answer
    x = 20,817.52

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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.