Home / 28,277.76-42,379.74-15,797.28

Finding the Fourth Proportional to 28,277.76, 42,379.74 and 15,797.28

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Solution

The fourth proportional to 28,277.76, 42,379.74 and 15,797.28 is: 23,675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.76 : 42,379.74 = 15,797.28 : x
  2. Step 2: Convert to fraction form
    28,277.76/42,379.74 = 15,797.28/x
  3. Step 3: Cross multiply
    28,277.76x = 42,379.74 × 15,797.28
  4. Step 4: Simplify right side
    28,277.76x = 669,484,619.11
  5. Step 5: Solve for x
    x = 669,484,619.11/28,277.76
  6. Step 6: Final answer
    x = 23,675.31

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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.