Home / 20,566.15-28,391.16-13,016.14

Finding the Fourth Proportional to 20,566.15, 28,391.16 and 13,016.14

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Solution

The fourth proportional to 20,566.15, 28,391.16 and 13,016.14 is: 17,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.15 : 28,391.16 = 13,016.14 : x
  2. Step 2: Convert to fraction form
    20,566.15/28,391.16 = 13,016.14/x
  3. Step 3: Cross multiply
    20,566.15x = 28,391.16 × 13,016.14
  4. Step 4: Simplify right side
    20,566.15x = 369,543,351.76
  5. Step 5: Solve for x
    x = 369,543,351.76/20,566.15
  6. Step 6: Final answer
    x = 17,968.52

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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.