Home / 20,686.92-28,547.34-11,735.24

Finding the Fourth Proportional to 20,686.92, 28,547.34 and 11,735.24

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Solution

The fourth proportional to 20,686.92, 28,547.34 and 11,735.24 is: 16,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.92 : 28,547.34 = 11,735.24 : x
  2. Step 2: Convert to fraction form
    20,686.92/28,547.34 = 11,735.24/x
  3. Step 3: Cross multiply
    20,686.92x = 28,547.34 × 11,735.24
  4. Step 4: Simplify right side
    20,686.92x = 335,009,886.26
  5. Step 5: Solve for x
    x = 335,009,886.26/20,686.92
  6. Step 6: Final answer
    x = 16,194.29

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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.