Home / 21,083.93-31,560.29-13,276.34

Finding the Fourth Proportional to 21,083.93, 31,560.29 and 13,276.34

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Solution

The fourth proportional to 21,083.93, 31,560.29 and 13,276.34 is: 19,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.93 : 31,560.29 = 13,276.34 : x
  2. Step 2: Convert to fraction form
    21,083.93/31,560.29 = 13,276.34/x
  3. Step 3: Cross multiply
    21,083.93x = 31,560.29 × 13,276.34
  4. Step 4: Simplify right side
    21,083.93x = 419,005,074.16
  5. Step 5: Solve for x
    x = 419,005,074.16/21,083.93
  6. Step 6: Final answer
    x = 19,873.20

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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.