Home / 25,485.06-35,170.15-15,415.35

Finding the Fourth Proportional to 25,485.06, 35,170.15 and 15,415.35

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Solution

The fourth proportional to 25,485.06, 35,170.15 and 15,415.35 is: 21,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.06 : 35,170.15 = 15,415.35 : x
  2. Step 2: Convert to fraction form
    25,485.06/35,170.15 = 15,415.35/x
  3. Step 3: Cross multiply
    25,485.06x = 35,170.15 × 15,415.35
  4. Step 4: Simplify right side
    25,485.06x = 542,160,030.28
  5. Step 5: Solve for x
    x = 542,160,030.28/25,485.06
  6. Step 6: Final answer
    x = 21,273.64

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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.