Home / 21,250.64-29,326.56-12,749.84

Finding the Fourth Proportional to 21,250.64, 29,326.56 and 12,749.84

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Solution

The fourth proportional to 21,250.64, 29,326.56 and 12,749.84 is: 17,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.64 : 29,326.56 = 12,749.84 : x
  2. Step 2: Convert to fraction form
    21,250.64/29,326.56 = 12,749.84/x
  3. Step 3: Cross multiply
    21,250.64x = 29,326.56 × 12,749.84
  4. Step 4: Simplify right side
    21,250.64x = 373,908,947.75
  5. Step 5: Solve for x
    x = 373,908,947.75/21,250.64
  6. Step 6: Final answer
    x = 17,595.19

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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.