Home / 21,488.60-29,655.24-12,057.77

Finding the Fourth Proportional to 21,488.60, 29,655.24 and 12,057.77

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Solution

The fourth proportional to 21,488.60, 29,655.24 and 12,057.77 is: 16,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.60 : 29,655.24 = 12,057.77 : x
  2. Step 2: Convert to fraction form
    21,488.60/29,655.24 = 12,057.77/x
  3. Step 3: Cross multiply
    21,488.60x = 29,655.24 × 12,057.77
  4. Step 4: Simplify right side
    21,488.60x = 357,576,063.21
  5. Step 5: Solve for x
    x = 357,576,063.21/21,488.60
  6. Step 6: Final answer
    x = 16,640.27

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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.