Home / 19,028.40-28,553.40-7,342.32

Finding the Fourth Proportional to 19,028.40, 28,553.40 and 7,342.32

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Solution

The fourth proportional to 19,028.40, 28,553.40 and 7,342.32 is: 11,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,028.40 : 28,553.40 = 7,342.32 : x
  2. Step 2: Convert to fraction form
    19,028.40/28,553.40 = 7,342.32/x
  3. Step 3: Cross multiply
    19,028.40x = 28,553.40 × 7,342.32
  4. Step 4: Simplify right side
    19,028.40x = 209,648,199.89
  5. Step 5: Solve for x
    x = 209,648,199.89/19,028.40
  6. Step 6: Final answer
    x = 11,017.65

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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.