Home / 21,027.71-29,018.58-11,595.71

Finding the Fourth Proportional to 21,027.71, 29,018.58 and 11,595.71

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Solution

The fourth proportional to 21,027.71, 29,018.58 and 11,595.71 is: 16,002.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.71 : 29,018.58 = 11,595.71 : x
  2. Step 2: Convert to fraction form
    21,027.71/29,018.58 = 11,595.71/x
  3. Step 3: Cross multiply
    21,027.71x = 29,018.58 × 11,595.71
  4. Step 4: Simplify right side
    21,027.71x = 336,491,038.29
  5. Step 5: Solve for x
    x = 336,491,038.29/21,027.71
  6. Step 6: Final answer
    x = 16,002.27

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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.