Home / 21,545.43-29,732.29-11,985.27

Finding the Fourth Proportional to 21,545.43, 29,732.29 and 11,985.27

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Solution

The fourth proportional to 21,545.43, 29,732.29 and 11,985.27 is: 16,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.43 : 29,732.29 = 11,985.27 : x
  2. Step 2: Convert to fraction form
    21,545.43/29,732.29 = 11,985.27/x
  3. Step 3: Cross multiply
    21,545.43x = 29,732.29 × 11,985.27
  4. Step 4: Simplify right side
    21,545.43x = 356,349,523.37
  5. Step 5: Solve for x
    x = 356,349,523.37/21,545.43
  6. Step 6: Final answer
    x = 16,539.45

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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.