Home / 21,069.36-31,597.56-11,203.20

Finding the Fourth Proportional to 21,069.36, 31,597.56 and 11,203.20

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Solution

The fourth proportional to 21,069.36, 31,597.56 and 11,203.20 is: 16,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.36 : 31,597.56 = 11,203.20 : x
  2. Step 2: Convert to fraction form
    21,069.36/31,597.56 = 11,203.20/x
  3. Step 3: Cross multiply
    21,069.36x = 31,597.56 × 11,203.20
  4. Step 4: Simplify right side
    21,069.36x = 353,993,784.19
  5. Step 5: Solve for x
    x = 353,993,784.19/21,069.36
  6. Step 6: Final answer
    x = 16,801.35

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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.