Home / 21,014.80-29,000.23-11,454.68

Finding the Fourth Proportional to 21,014.80, 29,000.23 and 11,454.68

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Solution

The fourth proportional to 21,014.80, 29,000.23 and 11,454.68 is: 15,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.80 : 29,000.23 = 11,454.68 : x
  2. Step 2: Convert to fraction form
    21,014.80/29,000.23 = 11,454.68/x
  3. Step 3: Cross multiply
    21,014.80x = 29,000.23 × 11,454.68
  4. Step 4: Simplify right side
    21,014.80x = 332,188,381.99
  5. Step 5: Solve for x
    x = 332,188,381.99/21,014.80
  6. Step 6: Final answer
    x = 15,807.36

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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.