Home / 22,312.52-33,455.80-11,918.60

Finding the Fourth Proportional to 22,312.52, 33,455.80 and 11,918.60

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Solution

The fourth proportional to 22,312.52, 33,455.80 and 11,918.60 is: 17,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.52 : 33,455.80 = 11,918.60 : x
  2. Step 2: Convert to fraction form
    22,312.52/33,455.80 = 11,918.60/x
  3. Step 3: Cross multiply
    22,312.52x = 33,455.80 × 11,918.60
  4. Step 4: Simplify right side
    22,312.52x = 398,746,297.88
  5. Step 5: Solve for x
    x = 398,746,297.88/22,312.52
  6. Step 6: Final answer
    x = 17,870.97

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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.