Home / 19,907.56-29,860.62-5,117.32

Finding the Fourth Proportional to 19,907.56, 29,860.62 and 5,117.32

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Solution

The fourth proportional to 19,907.56, 29,860.62 and 5,117.32 is: 7,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.56 : 29,860.62 = 5,117.32 : x
  2. Step 2: Convert to fraction form
    19,907.56/29,860.62 = 5,117.32/x
  3. Step 3: Cross multiply
    19,907.56x = 29,860.62 × 5,117.32
  4. Step 4: Simplify right side
    19,907.56x = 152,806,347.94
  5. Step 5: Solve for x
    x = 152,806,347.94/19,907.56
  6. Step 6: Final answer
    x = 7,675.79

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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.