Home / 23,168.32-31,971.84-12,557.76

Finding the Fourth Proportional to 23,168.32, 31,971.84 and 12,557.76

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Solution

The fourth proportional to 23,168.32, 31,971.84 and 12,557.76 is: 17,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,168.32 : 31,971.84 = 12,557.76 : x
  2. Step 2: Convert to fraction form
    23,168.32/31,971.84 = 12,557.76/x
  3. Step 3: Cross multiply
    23,168.32x = 31,971.84 × 12,557.76
  4. Step 4: Simplify right side
    23,168.32x = 401,494,693.48
  5. Step 5: Solve for x
    x = 401,494,693.48/23,168.32
  6. Step 6: Final answer
    x = 17,329.47

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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.