Home / 19,920.90-27,499.35-14,182.06

Finding the Fourth Proportional to 19,920.90, 27,499.35 and 14,182.06

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Solution

The fourth proportional to 19,920.90, 27,499.35 and 14,182.06 is: 19,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.90 : 27,499.35 = 14,182.06 : x
  2. Step 2: Convert to fraction form
    19,920.90/27,499.35 = 14,182.06/x
  3. Step 3: Cross multiply
    19,920.90x = 27,499.35 × 14,182.06
  4. Step 4: Simplify right side
    19,920.90x = 389,997,431.66
  5. Step 5: Solve for x
    x = 389,997,431.66/19,920.90
  6. Step 6: Final answer
    x = 19,577.30

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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.