Home / 21,495.40-29,663.70-12,063.96

Finding the Fourth Proportional to 21,495.40, 29,663.70 and 12,063.96

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Solution

The fourth proportional to 21,495.40, 29,663.70 and 12,063.96 is: 16,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.40 : 29,663.70 = 12,063.96 : x
  2. Step 2: Convert to fraction form
    21,495.40/29,663.70 = 12,063.96/x
  3. Step 3: Cross multiply
    21,495.40x = 29,663.70 × 12,063.96
  4. Step 4: Simplify right side
    21,495.40x = 357,861,690.25
  5. Step 5: Solve for x
    x = 357,861,690.25/21,495.40
  6. Step 6: Final answer
    x = 16,648.29

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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.