Home / 21,426.36-29,564.85-13,462.94

Finding the Fourth Proportional to 21,426.36, 29,564.85 and 13,462.94

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Solution

The fourth proportional to 21,426.36, 29,564.85 and 13,462.94 is: 18,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.36 : 29,564.85 = 13,462.94 : x
  2. Step 2: Convert to fraction form
    21,426.36/29,564.85 = 13,462.94/x
  3. Step 3: Cross multiply
    21,426.36x = 29,564.85 × 13,462.94
  4. Step 4: Simplify right side
    21,426.36x = 398,029,801.66
  5. Step 5: Solve for x
    x = 398,029,801.66/21,426.36
  6. Step 6: Final answer
    x = 18,576.65

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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.