Home / 19,643.40-27,138.54-18,068.76

Finding the Fourth Proportional to 19,643.40, 27,138.54 and 18,068.76

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Solution

The fourth proportional to 19,643.40, 27,138.54 and 18,068.76 is: 24,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.40 : 27,138.54 = 18,068.76 : x
  2. Step 2: Convert to fraction form
    19,643.40/27,138.54 = 18,068.76/x
  3. Step 3: Cross multiply
    19,643.40x = 27,138.54 × 18,068.76
  4. Step 4: Simplify right side
    19,643.40x = 490,359,766.01
  5. Step 5: Solve for x
    x = 490,359,766.01/19,643.40
  6. Step 6: Final answer
    x = 24,963.08

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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.