Home / 40,070.83-55,297.74-21,921.70

Finding the Fourth Proportional to 40,070.83, 55,297.74 and 21,921.70

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Solution

The fourth proportional to 40,070.83, 55,297.74 and 21,921.70 is: 30,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,070.83 : 55,297.74 = 21,921.70 : x
  2. Step 2: Convert to fraction form
    40,070.83/55,297.74 = 21,921.70/x
  3. Step 3: Cross multiply
    40,070.83x = 55,297.74 × 21,921.70
  4. Step 4: Simplify right side
    40,070.83x = 1,212,220,466.96
  5. Step 5: Solve for x
    x = 1,212,220,466.96/40,070.83
  6. Step 6: Final answer
    x = 30,251.94

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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.