Home / 21,447.52-29,593.35-13,485.12

Finding the Fourth Proportional to 21,447.52, 29,593.35 and 13,485.12

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Solution

The fourth proportional to 21,447.52, 29,593.35 and 13,485.12 is: 18,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.52 : 29,593.35 = 13,485.12 : x
  2. Step 2: Convert to fraction form
    21,447.52/29,593.35 = 13,485.12/x
  3. Step 3: Cross multiply
    21,447.52x = 29,593.35 × 13,485.12
  4. Step 4: Simplify right side
    21,447.52x = 399,069,764.98
  5. Step 5: Solve for x
    x = 399,069,764.98/21,447.52
  6. Step 6: Final answer
    x = 18,606.80

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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.