Home / 19,820.08-27,346.92-11,436.56

Finding the Fourth Proportional to 19,820.08, 27,346.92 and 11,436.56

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Solution

The fourth proportional to 19,820.08, 27,346.92 and 11,436.56 is: 15,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.08 : 27,346.92 = 11,436.56 : x
  2. Step 2: Convert to fraction form
    19,820.08/27,346.92 = 11,436.56/x
  3. Step 3: Cross multiply
    19,820.08x = 27,346.92 × 11,436.56
  4. Step 4: Simplify right side
    19,820.08x = 312,754,691.40
  5. Step 5: Solve for x
    x = 312,754,691.40/19,820.08
  6. Step 6: Final answer
    x = 15,779.69

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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.