Home / 21,263.72-29,340.43-11,830.46

Finding the Fourth Proportional to 21,263.72, 29,340.43 and 11,830.46

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Solution

The fourth proportional to 21,263.72, 29,340.43 and 11,830.46 is: 16,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.72 : 29,340.43 = 11,830.46 : x
  2. Step 2: Convert to fraction form
    21,263.72/29,340.43 = 11,830.46/x
  3. Step 3: Cross multiply
    21,263.72x = 29,340.43 × 11,830.46
  4. Step 4: Simplify right side
    21,263.72x = 347,110,607.22
  5. Step 5: Solve for x
    x = 347,110,607.22/21,263.72
  6. Step 6: Final answer
    x = 16,324.08

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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.