Home / 25,768.08-35,558.28-15,155.64

Finding the Fourth Proportional to 25,768.08, 35,558.28 and 15,155.64

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Solution

The fourth proportional to 25,768.08, 35,558.28 and 15,155.64 is: 20,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.08 : 35,558.28 = 15,155.64 : x
  2. Step 2: Convert to fraction form
    25,768.08/35,558.28 = 15,155.64/x
  3. Step 3: Cross multiply
    25,768.08x = 35,558.28 × 15,155.64
  4. Step 4: Simplify right side
    25,768.08x = 538,908,490.70
  5. Step 5: Solve for x
    x = 538,908,490.70/25,768.08
  6. Step 6: Final answer
    x = 20,913.80

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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.