Home / 21,560.90-29,752.44-12,127.64

Finding the Fourth Proportional to 21,560.90, 29,752.44 and 12,127.64

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Solution

The fourth proportional to 21,560.90, 29,752.44 and 12,127.64 is: 16,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.90 : 29,752.44 = 12,127.64 : x
  2. Step 2: Convert to fraction form
    21,560.90/29,752.44 = 12,127.64/x
  3. Step 3: Cross multiply
    21,560.90x = 29,752.44 × 12,127.64
  4. Step 4: Simplify right side
    21,560.90x = 360,826,881.44
  5. Step 5: Solve for x
    x = 360,826,881.44/21,560.90
  6. Step 6: Final answer
    x = 16,735.24

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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.