Home / 20,746.60-31,104.06-10,365.64

Finding the Fourth Proportional to 20,746.60, 31,104.06 and 10,365.64

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Solution

The fourth proportional to 20,746.60, 31,104.06 and 10,365.64 is: 15,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.60 : 31,104.06 = 10,365.64 : x
  2. Step 2: Convert to fraction form
    20,746.60/31,104.06 = 10,365.64/x
  3. Step 3: Cross multiply
    20,746.60x = 31,104.06 × 10,365.64
  4. Step 4: Simplify right side
    20,746.60x = 322,413,488.50
  5. Step 5: Solve for x
    x = 322,413,488.50/20,746.60
  6. Step 6: Final answer
    x = 15,540.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.