Home / 19,888.60-27,451.35-11,393.50

Finding the Fourth Proportional to 19,888.60, 27,451.35 and 11,393.50

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Solution

The fourth proportional to 19,888.60, 27,451.35 and 11,393.50 is: 15,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.60 : 27,451.35 = 11,393.50 : x
  2. Step 2: Convert to fraction form
    19,888.60/27,451.35 = 11,393.50/x
  3. Step 3: Cross multiply
    19,888.60x = 27,451.35 × 11,393.50
  4. Step 4: Simplify right side
    19,888.60x = 312,766,956.23
  5. Step 5: Solve for x
    x = 312,766,956.23/19,888.60
  6. Step 6: Final answer
    x = 15,725.94

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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.