Home / 19,779.75-27,283.45-13,809.24

Finding the Fourth Proportional to 19,779.75, 27,283.45 and 13,809.24

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Solution

The fourth proportional to 19,779.75, 27,283.45 and 13,809.24 is: 19,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.75 : 27,283.45 = 13,809.24 : x
  2. Step 2: Convert to fraction form
    19,779.75/27,283.45 = 13,809.24/x
  3. Step 3: Cross multiply
    19,779.75x = 27,283.45 × 13,809.24
  4. Step 4: Simplify right side
    19,779.75x = 376,763,709.08
  5. Step 5: Solve for x
    x = 376,763,709.08/19,779.75
  6. Step 6: Final answer
    x = 19,047.95

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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.