Home / 28,907.95-39,830.73-19,460.11

Finding the Fourth Proportional to 28,907.95, 39,830.73 and 19,460.11

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Solution

The fourth proportional to 28,907.95, 39,830.73 and 19,460.11 is: 26,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.95 : 39,830.73 = 19,460.11 : x
  2. Step 2: Convert to fraction form
    28,907.95/39,830.73 = 19,460.11/x
  3. Step 3: Cross multiply
    28,907.95x = 39,830.73 × 19,460.11
  4. Step 4: Simplify right side
    28,907.95x = 775,110,387.18
  5. Step 5: Solve for x
    x = 775,110,387.18/28,907.95
  6. Step 6: Final answer
    x = 26,813.05

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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.