Home / 21,297.18-31,921.08-10,059.60

Finding the Fourth Proportional to 21,297.18, 31,921.08 and 10,059.60

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Solution

The fourth proportional to 21,297.18, 31,921.08 and 10,059.60 is: 15,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.18 : 31,921.08 = 10,059.60 : x
  2. Step 2: Convert to fraction form
    21,297.18/31,921.08 = 10,059.60/x
  3. Step 3: Cross multiply
    21,297.18x = 31,921.08 × 10,059.60
  4. Step 4: Simplify right side
    21,297.18x = 321,113,296.37
  5. Step 5: Solve for x
    x = 321,113,296.37/21,297.18
  6. Step 6: Final answer
    x = 15,077.74

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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.