Home / 19,028.20-28,547.16-7,338.28

Finding the Fourth Proportional to 19,028.20, 28,547.16 and 7,338.28

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Solution

The fourth proportional to 19,028.20, 28,547.16 and 7,338.28 is: 11,009.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,028.20 : 28,547.16 = 7,338.28 : x
  2. Step 2: Convert to fraction form
    19,028.20/28,547.16 = 7,338.28/x
  3. Step 3: Cross multiply
    19,028.20x = 28,547.16 × 7,338.28
  4. Step 4: Simplify right side
    19,028.20x = 209,487,053.28
  5. Step 5: Solve for x
    x = 209,487,053.28/19,028.20
  6. Step 6: Final answer
    x = 11,009.29

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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.