Home / 25,870.44-35,700.19-15,815.71

Finding the Fourth Proportional to 25,870.44, 35,700.19 and 15,815.71

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Solution

The fourth proportional to 25,870.44, 35,700.19 and 15,815.71 is: 21,825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.44 : 35,700.19 = 15,815.71 : x
  2. Step 2: Convert to fraction form
    25,870.44/35,700.19 = 15,815.71/x
  3. Step 3: Cross multiply
    25,870.44x = 35,700.19 × 15,815.71
  4. Step 4: Simplify right side
    25,870.44x = 564,623,745.22
  5. Step 5: Solve for x
    x = 564,623,745.22/25,870.44
  6. Step 6: Final answer
    x = 21,825.06

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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.