Home / 20,549.30-28,359.54-11,597.59

Finding the Fourth Proportional to 20,549.30, 28,359.54 and 11,597.59

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Solution

The fourth proportional to 20,549.30, 28,359.54 and 11,597.59 is: 16,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.30 : 28,359.54 = 11,597.59 : x
  2. Step 2: Convert to fraction form
    20,549.30/28,359.54 = 11,597.59/x
  3. Step 3: Cross multiply
    20,549.30x = 28,359.54 × 11,597.59
  4. Step 4: Simplify right side
    20,549.30x = 328,902,117.72
  5. Step 5: Solve for x
    x = 328,902,117.72/20,549.30
  6. Step 6: Final answer
    x = 16,005.51

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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.