Home / 21,303.68-29,397.75-11,743.07

Finding the Fourth Proportional to 21,303.68, 29,397.75 and 11,743.07

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Solution

The fourth proportional to 21,303.68, 29,397.75 and 11,743.07 is: 16,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.68 : 29,397.75 = 11,743.07 : x
  2. Step 2: Convert to fraction form
    21,303.68/29,397.75 = 11,743.07/x
  3. Step 3: Cross multiply
    21,303.68x = 29,397.75 × 11,743.07
  4. Step 4: Simplify right side
    21,303.68x = 345,219,865.45
  5. Step 5: Solve for x
    x = 345,219,865.45/21,303.68
  6. Step 6: Final answer
    x = 16,204.71

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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.