Home / 28,409.74-39,230.22-17,817.64

Finding the Fourth Proportional to 28,409.74, 39,230.22 and 17,817.64

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Solution

The fourth proportional to 28,409.74, 39,230.22 and 17,817.64 is: 24,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.74 : 39,230.22 = 17,817.64 : x
  2. Step 2: Convert to fraction form
    28,409.74/39,230.22 = 17,817.64/x
  3. Step 3: Cross multiply
    28,409.74x = 39,230.22 × 17,817.64
  4. Step 4: Simplify right side
    28,409.74x = 698,989,905.82
  5. Step 5: Solve for x
    x = 698,989,905.82/28,409.74
  6. Step 6: Final answer
    x = 24,603.88

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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.