Home / 21,426.06-29,567.21-11,865.39

Finding the Fourth Proportional to 21,426.06, 29,567.21 and 11,865.39

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Solution

The fourth proportional to 21,426.06, 29,567.21 and 11,865.39 is: 16,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.06 : 29,567.21 = 11,865.39 : x
  2. Step 2: Convert to fraction form
    21,426.06/29,567.21 = 11,865.39/x
  3. Step 3: Cross multiply
    21,426.06x = 29,567.21 × 11,865.39
  4. Step 4: Simplify right side
    21,426.06x = 350,826,307.66
  5. Step 5: Solve for x
    x = 350,826,307.66/21,426.06
  6. Step 6: Final answer
    x = 16,373.81

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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.