Home / 23,172.16-31,977.30-12,561.64

Finding the Fourth Proportional to 23,172.16, 31,977.30 and 12,561.64

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Solution

The fourth proportional to 23,172.16, 31,977.30 and 12,561.64 is: 17,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.16 : 31,977.30 = 12,561.64 : x
  2. Step 2: Convert to fraction form
    23,172.16/31,977.30 = 12,561.64/x
  3. Step 3: Cross multiply
    23,172.16x = 31,977.30 × 12,561.64
  4. Step 4: Simplify right side
    23,172.16x = 401,687,330.77
  5. Step 5: Solve for x
    x = 401,687,330.77/23,172.16
  6. Step 6: Final answer
    x = 17,334.91

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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.