Home / 21,702.09-29,945.70-12,752.49

Finding the Fourth Proportional to 21,702.09, 29,945.70 and 12,752.49

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Solution

The fourth proportional to 21,702.09, 29,945.70 and 12,752.49 is: 17,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.09 : 29,945.70 = 12,752.49 : x
  2. Step 2: Convert to fraction form
    21,702.09/29,945.70 = 12,752.49/x
  3. Step 3: Cross multiply
    21,702.09x = 29,945.70 × 12,752.49
  4. Step 4: Simplify right side
    21,702.09x = 381,882,239.79
  5. Step 5: Solve for x
    x = 381,882,239.79/21,702.09
  6. Step 6: Final answer
    x = 17,596.57

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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.