Home / 25,775.28-35,575.74-20,772.72

Finding the Fourth Proportional to 25,775.28, 35,575.74 and 20,772.72

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Solution

The fourth proportional to 25,775.28, 35,575.74 and 20,772.72 is: 28,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.28 : 35,575.74 = 20,772.72 : x
  2. Step 2: Convert to fraction form
    25,775.28/35,575.74 = 20,772.72/x
  3. Step 3: Cross multiply
    25,775.28x = 35,575.74 × 20,772.72
  4. Step 4: Simplify right side
    25,775.28x = 739,004,885.81
  5. Step 5: Solve for x
    x = 739,004,885.81/25,775.28
  6. Step 6: Final answer
    x = 28,671.07

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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.