Home / 20,592.90-28,419.96-11,642.00

Finding the Fourth Proportional to 20,592.90, 28,419.96 and 11,642.00

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Solution

The fourth proportional to 20,592.90, 28,419.96 and 11,642.00 is: 16,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.90 : 28,419.96 = 11,642.00 : x
  2. Step 2: Convert to fraction form
    20,592.90/28,419.96 = 11,642.00/x
  3. Step 3: Cross multiply
    20,592.90x = 28,419.96 × 11,642.00
  4. Step 4: Simplify right side
    20,592.90x = 330,865,075.88
  5. Step 5: Solve for x
    x = 330,865,075.88/20,592.90
  6. Step 6: Final answer
    x = 16,066.95

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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.