Home / 20,497.04-28,285.14-11,422.19

Finding the Fourth Proportional to 20,497.04, 28,285.14 and 11,422.19

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Solution

The fourth proportional to 20,497.04, 28,285.14 and 11,422.19 is: 15,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.04 : 28,285.14 = 11,422.19 : x
  2. Step 2: Convert to fraction form
    20,497.04/28,285.14 = 11,422.19/x
  3. Step 3: Cross multiply
    20,497.04x = 28,285.14 × 11,422.19
  4. Step 4: Simplify right side
    20,497.04x = 323,078,243.26
  5. Step 5: Solve for x
    x = 323,078,243.26/20,497.04
  6. Step 6: Final answer
    x = 15,762.19

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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.