Home / 21,781.64-32,657.34-11,925.56

Finding the Fourth Proportional to 21,781.64, 32,657.34 and 11,925.56

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Solution

The fourth proportional to 21,781.64, 32,657.34 and 11,925.56 is: 17,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.64 : 32,657.34 = 11,925.56 : x
  2. Step 2: Convert to fraction form
    21,781.64/32,657.34 = 11,925.56/x
  3. Step 3: Cross multiply
    21,781.64x = 32,657.34 × 11,925.56
  4. Step 4: Simplify right side
    21,781.64x = 389,457,067.61
  5. Step 5: Solve for x
    x = 389,457,067.61/21,781.64
  6. Step 6: Final answer
    x = 17,880.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.