Home / 21,756.53-30,040.98-16,712.76

Finding the Fourth Proportional to 21,756.53, 30,040.98 and 16,712.76

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Solution

The fourth proportional to 21,756.53, 30,040.98 and 16,712.76 is: 23,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.53 : 30,040.98 = 16,712.76 : x
  2. Step 2: Convert to fraction form
    21,756.53/30,040.98 = 16,712.76/x
  3. Step 3: Cross multiply
    21,756.53x = 30,040.98 × 16,712.76
  4. Step 4: Simplify right side
    21,756.53x = 502,067,738.89
  5. Step 5: Solve for x
    x = 502,067,738.89/21,756.53
  6. Step 6: Final answer
    x = 23,076.64

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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.