Home / 21,101.44-31,652.16-5,518.93

Finding the Fourth Proportional to 21,101.44, 31,652.16 and 5,518.93

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Solution

The fourth proportional to 21,101.44, 31,652.16 and 5,518.93 is: 8,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.44 : 31,652.16 = 5,518.93 : x
  2. Step 2: Convert to fraction form
    21,101.44/31,652.16 = 5,518.93/x
  3. Step 3: Cross multiply
    21,101.44x = 31,652.16 × 5,518.93
  4. Step 4: Simplify right side
    21,101.44x = 174,686,055.39
  5. Step 5: Solve for x
    x = 174,686,055.39/21,101.44
  6. Step 6: Final answer
    x = 8,278.40

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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.