Home / 21,048.77-31,545.82-8,554.26

Finding the Fourth Proportional to 21,048.77, 31,545.82 and 8,554.26

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Solution

The fourth proportional to 21,048.77, 31,545.82 and 8,554.26 is: 12,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.77 : 31,545.82 = 8,554.26 : x
  2. Step 2: Convert to fraction form
    21,048.77/31,545.82 = 8,554.26/x
  3. Step 3: Cross multiply
    21,048.77x = 31,545.82 × 8,554.26
  4. Step 4: Simplify right side
    21,048.77x = 269,851,115.78
  5. Step 5: Solve for x
    x = 269,851,115.78/21,048.77
  6. Step 6: Final answer
    x = 12,820.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.