Home / 21,260.71-29,340.93-11,829.48

Finding the Fourth Proportional to 21,260.71, 29,340.93 and 11,829.48

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Solution

The fourth proportional to 21,260.71, 29,340.93 and 11,829.48 is: 16,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.71 : 29,340.93 = 11,829.48 : x
  2. Step 2: Convert to fraction form
    21,260.71/29,340.93 = 11,829.48/x
  3. Step 3: Cross multiply
    21,260.71x = 29,340.93 × 11,829.48
  4. Step 4: Simplify right side
    21,260.71x = 347,087,944.62
  5. Step 5: Solve for x
    x = 347,087,944.62/21,260.71
  6. Step 6: Final answer
    x = 16,325.32

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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.