Home / 21,576.86-29,775.38-12,016.76

Finding the Fourth Proportional to 21,576.86, 29,775.38 and 12,016.76

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Solution

The fourth proportional to 21,576.86, 29,775.38 and 12,016.76 is: 16,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.86 : 29,775.38 = 12,016.76 : x
  2. Step 2: Convert to fraction form
    21,576.86/29,775.38 = 12,016.76/x
  3. Step 3: Cross multiply
    21,576.86x = 29,775.38 × 12,016.76
  4. Step 4: Simplify right side
    21,576.86x = 357,803,595.37
  5. Step 5: Solve for x
    x = 357,803,595.37/21,576.86
  6. Step 6: Final answer
    x = 16,582.75

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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.