Home / 19,779.80-27,294.74-11,282.28

Finding the Fourth Proportional to 19,779.80, 27,294.74 and 11,282.28

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Solution

The fourth proportional to 19,779.80, 27,294.74 and 11,282.28 is: 15,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.80 : 27,294.74 = 11,282.28 : x
  2. Step 2: Convert to fraction form
    19,779.80/27,294.74 = 11,282.28/x
  3. Step 3: Cross multiply
    19,779.80x = 27,294.74 × 11,282.28
  4. Step 4: Simplify right side
    19,779.80x = 307,946,899.21
  5. Step 5: Solve for x
    x = 307,946,899.21/19,779.80
  6. Step 6: Final answer
    x = 15,568.76

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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.