Home / 19,788.72-27,295.80-13,818.16

Finding the Fourth Proportional to 19,788.72, 27,295.80 and 13,818.16

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Solution

The fourth proportional to 19,788.72, 27,295.80 and 13,818.16 is: 19,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.72 : 27,295.80 = 13,818.16 : x
  2. Step 2: Convert to fraction form
    19,788.72/27,295.80 = 13,818.16/x
  3. Step 3: Cross multiply
    19,788.72x = 27,295.80 × 13,818.16
  4. Step 4: Simplify right side
    19,788.72x = 377,177,731.73
  5. Step 5: Solve for x
    x = 377,177,731.73/19,788.72
  6. Step 6: Final answer
    x = 19,060.24

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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.