Home / 21,285.52-29,369.52-12,332.48

Finding the Fourth Proportional to 21,285.52, 29,369.52 and 12,332.48

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Solution

The fourth proportional to 21,285.52, 29,369.52 and 12,332.48 is: 17,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.52 : 29,369.52 = 12,332.48 : x
  2. Step 2: Convert to fraction form
    21,285.52/29,369.52 = 12,332.48/x
  3. Step 3: Cross multiply
    21,285.52x = 29,369.52 × 12,332.48
  4. Step 4: Simplify right side
    21,285.52x = 362,198,871.16
  5. Step 5: Solve for x
    x = 362,198,871.16/21,285.52
  6. Step 6: Final answer
    x = 17,016.21

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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.