Home / 28,918.35-39,905.13-17,586.30

Finding the Fourth Proportional to 28,918.35, 39,905.13 and 17,586.30

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Solution

The fourth proportional to 28,918.35, 39,905.13 and 17,586.30 is: 24,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.35 : 39,905.13 = 17,586.30 : x
  2. Step 2: Convert to fraction form
    28,918.35/39,905.13 = 17,586.30/x
  3. Step 3: Cross multiply
    28,918.35x = 39,905.13 × 17,586.30
  4. Step 4: Simplify right side
    28,918.35x = 701,783,587.72
  5. Step 5: Solve for x
    x = 701,783,587.72/28,918.35
  6. Step 6: Final answer
    x = 24,267.76

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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.