Home / 20,554.24-28,365.40-11,602.58

Finding the Fourth Proportional to 20,554.24, 28,365.40 and 11,602.58

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Solution

The fourth proportional to 20,554.24, 28,365.40 and 11,602.58 is: 16,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.24 : 28,365.40 = 11,602.58 : x
  2. Step 2: Convert to fraction form
    20,554.24/28,365.40 = 11,602.58/x
  3. Step 3: Cross multiply
    20,554.24x = 28,365.40 × 11,602.58
  4. Step 4: Simplify right side
    20,554.24x = 329,111,822.73
  5. Step 5: Solve for x
    x = 329,111,822.73/20,554.24
  6. Step 6: Final answer
    x = 16,011.87

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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.