Home / 20,623.98-28,461.64-11,192.54

Finding the Fourth Proportional to 20,623.98, 28,461.64 and 11,192.54

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Solution

The fourth proportional to 20,623.98, 28,461.64 and 11,192.54 is: 15,446.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.98 : 28,461.64 = 11,192.54 : x
  2. Step 2: Convert to fraction form
    20,623.98/28,461.64 = 11,192.54/x
  3. Step 3: Cross multiply
    20,623.98x = 28,461.64 × 11,192.54
  4. Step 4: Simplify right side
    20,623.98x = 318,558,044.17
  5. Step 5: Solve for x
    x = 318,558,044.17/20,623.98
  6. Step 6: Final answer
    x = 15,446.00

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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.