Home / 23,120.40-31,907.28-14,168.40

Finding the Fourth Proportional to 23,120.40, 31,907.28 and 14,168.40

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Solution

The fourth proportional to 23,120.40, 31,907.28 and 14,168.40 is: 19,553.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.40 : 31,907.28 = 14,168.40 : x
  2. Step 2: Convert to fraction form
    23,120.40/31,907.28 = 14,168.40/x
  3. Step 3: Cross multiply
    23,120.40x = 31,907.28 × 14,168.40
  4. Step 4: Simplify right side
    23,120.40x = 452,075,105.95
  5. Step 5: Solve for x
    x = 452,075,105.95/23,120.40
  6. Step 6: Final answer
    x = 19,553.08

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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.