Home / 29,702.45-40,965.10-21,189.56

Finding the Fourth Proportional to 29,702.45, 40,965.10 and 21,189.56

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Solution

The fourth proportional to 29,702.45, 40,965.10 and 21,189.56 is: 29,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,702.45 : 40,965.10 = 21,189.56 : x
  2. Step 2: Convert to fraction form
    29,702.45/40,965.10 = 21,189.56/x
  3. Step 3: Cross multiply
    29,702.45x = 40,965.10 × 21,189.56
  4. Step 4: Simplify right side
    29,702.45x = 868,032,186.56
  5. Step 5: Solve for x
    x = 868,032,186.56/29,702.45
  6. Step 6: Final answer
    x = 29,224.26

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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.