Home / 21,567.20-29,758.26-12,612.98

Finding the Fourth Proportional to 21,567.20, 29,758.26 and 12,612.98

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Solution

The fourth proportional to 21,567.20, 29,758.26 and 12,612.98 is: 17,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.20 : 29,758.26 = 12,612.98 : x
  2. Step 2: Convert to fraction form
    21,567.20/29,758.26 = 12,612.98/x
  3. Step 3: Cross multiply
    21,567.20x = 29,758.26 × 12,612.98
  4. Step 4: Simplify right side
    21,567.20x = 375,340,338.21
  5. Step 5: Solve for x
    x = 375,340,338.21/21,567.20
  6. Step 6: Final answer
    x = 17,403.29

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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.