Home / 21,944.36-30,276.28-13,437.64

Finding the Fourth Proportional to 21,944.36, 30,276.28 and 13,437.64

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Solution

The fourth proportional to 21,944.36, 30,276.28 and 13,437.64 is: 18,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.36 : 30,276.28 = 13,437.64 : x
  2. Step 2: Convert to fraction form
    21,944.36/30,276.28 = 13,437.64/x
  3. Step 3: Cross multiply
    21,944.36x = 30,276.28 × 13,437.64
  4. Step 4: Simplify right side
    21,944.36x = 406,841,751.18
  5. Step 5: Solve for x
    x = 406,841,751.18/21,944.36
  6. Step 6: Final answer
    x = 18,539.70

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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.