Home / 21,116.32-29,135.96-13,462.50

Finding the Fourth Proportional to 21,116.32, 29,135.96 and 13,462.50

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Solution

The fourth proportional to 21,116.32, 29,135.96 and 13,462.50 is: 18,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116.32 : 29,135.96 = 13,462.50 : x
  2. Step 2: Convert to fraction form
    21,116.32/29,135.96 = 13,462.50/x
  3. Step 3: Cross multiply
    21,116.32x = 29,135.96 × 13,462.50
  4. Step 4: Simplify right side
    21,116.32x = 392,242,861.50
  5. Step 5: Solve for x
    x = 392,242,861.50/21,116.32
  6. Step 6: Final answer
    x = 18,575.34

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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.