Home / 19,348.40-28,999.92-8,938.28

Finding the Fourth Proportional to 19,348.40, 28,999.92 and 8,938.28

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Solution

The fourth proportional to 19,348.40, 28,999.92 and 8,938.28 is: 13,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.40 : 28,999.92 = 8,938.28 : x
  2. Step 2: Convert to fraction form
    19,348.40/28,999.92 = 8,938.28/x
  3. Step 3: Cross multiply
    19,348.40x = 28,999.92 × 8,938.28
  4. Step 4: Simplify right side
    19,348.40x = 259,209,404.94
  5. Step 5: Solve for x
    x = 259,209,404.94/19,348.40
  6. Step 6: Final answer
    x = 13,396.94

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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.