Home / 28,378.24-42,563.84-7,603.20

Finding the Fourth Proportional to 28,378.24, 42,563.84 and 7,603.20

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Solution

The fourth proportional to 28,378.24, 42,563.84 and 7,603.20 is: 11,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.24 : 42,563.84 = 7,603.20 : x
  2. Step 2: Convert to fraction form
    28,378.24/42,563.84 = 7,603.20/x
  3. Step 3: Cross multiply
    28,378.24x = 42,563.84 × 7,603.20
  4. Step 4: Simplify right side
    28,378.24x = 323,621,388.29
  5. Step 5: Solve for x
    x = 323,621,388.29/28,378.24
  6. Step 6: Final answer
    x = 11,403.86

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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.