Home / 28,281.54-42,422.31-10,763.67

Finding the Fourth Proportional to 28,281.54, 42,422.31 and 10,763.67

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Solution

The fourth proportional to 28,281.54, 42,422.31 and 10,763.67 is: 16,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.54 : 42,422.31 = 10,763.67 : x
  2. Step 2: Convert to fraction form
    28,281.54/42,422.31 = 10,763.67/x
  3. Step 3: Cross multiply
    28,281.54x = 42,422.31 × 10,763.67
  4. Step 4: Simplify right side
    28,281.54x = 456,619,745.48
  5. Step 5: Solve for x
    x = 456,619,745.48/28,281.54
  6. Step 6: Final answer
    x = 16,145.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.