Home / 25,868.57-35,697.60-15,813.84

Finding the Fourth Proportional to 25,868.57, 35,697.60 and 15,813.84

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Solution

The fourth proportional to 25,868.57, 35,697.60 and 15,813.84 is: 21,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,868.57 : 35,697.60 = 15,813.84 : x
  2. Step 2: Convert to fraction form
    25,868.57/35,697.60 = 15,813.84/x
  3. Step 3: Cross multiply
    25,868.57x = 35,697.60 × 15,813.84
  4. Step 4: Simplify right side
    25,868.57x = 564,516,134.78
  5. Step 5: Solve for x
    x = 564,516,134.78/25,868.57
  6. Step 6: Final answer
    x = 21,822.47

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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.