Home / 22,445.76-30,976.32-13,017.60

Finding the Fourth Proportional to 22,445.76, 30,976.32 and 13,017.60

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Solution

The fourth proportional to 22,445.76, 30,976.32 and 13,017.60 is: 17,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.76 : 30,976.32 = 13,017.60 : x
  2. Step 2: Convert to fraction form
    22,445.76/30,976.32 = 13,017.60/x
  3. Step 3: Cross multiply
    22,445.76x = 30,976.32 × 13,017.60
  4. Step 4: Simplify right side
    22,445.76x = 403,237,343.23
  5. Step 5: Solve for x
    x = 403,237,343.23/22,445.76
  6. Step 6: Final answer
    x = 17,964.97

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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.