Home / 19,779.10-27,295.91-11,282.60

Finding the Fourth Proportional to 19,779.10, 27,295.91 and 11,282.60

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Solution

The fourth proportional to 19,779.10, 27,295.91 and 11,282.60 is: 15,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.10 : 27,295.91 = 11,282.60 : x
  2. Step 2: Convert to fraction form
    19,779.10/27,295.91 = 11,282.60/x
  3. Step 3: Cross multiply
    19,779.10x = 27,295.91 × 11,282.60
  4. Step 4: Simplify right side
    19,779.10x = 307,968,777.75
  5. Step 5: Solve for x
    x = 307,968,777.75/19,779.10
  6. Step 6: Final answer
    x = 15,570.42

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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.