Home / 21,349.07-29,461.68-11,917.63

Finding the Fourth Proportional to 21,349.07, 29,461.68 and 11,917.63

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Solution

The fourth proportional to 21,349.07, 29,461.68 and 11,917.63 is: 16,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.07 : 29,461.68 = 11,917.63 : x
  2. Step 2: Convert to fraction form
    21,349.07/29,461.68 = 11,917.63/x
  3. Step 3: Cross multiply
    21,349.07x = 29,461.68 × 11,917.63
  4. Step 4: Simplify right side
    21,349.07x = 351,113,327.76
  5. Step 5: Solve for x
    x = 351,113,327.76/21,349.07
  6. Step 6: Final answer
    x = 16,446.31

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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.