Home / 21,577.20-29,775.70-12,017.48

Finding the Fourth Proportional to 21,577.20, 29,775.70 and 12,017.48

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Solution

The fourth proportional to 21,577.20, 29,775.70 and 12,017.48 is: 16,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.20 : 29,775.70 = 12,017.48 : x
  2. Step 2: Convert to fraction form
    21,577.20/29,775.70 = 12,017.48/x
  3. Step 3: Cross multiply
    21,577.20x = 29,775.70 × 12,017.48
  4. Step 4: Simplify right side
    21,577.20x = 357,828,879.24
  5. Step 5: Solve for x
    x = 357,828,879.24/21,577.20
  6. Step 6: Final answer
    x = 16,583.66

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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.