Home / 21,231.42-29,298.96-11,671.53

Finding the Fourth Proportional to 21,231.42, 29,298.96 and 11,671.53

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Solution

The fourth proportional to 21,231.42, 29,298.96 and 11,671.53 is: 16,106.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.42 : 29,298.96 = 11,671.53 : x
  2. Step 2: Convert to fraction form
    21,231.42/29,298.96 = 11,671.53/x
  3. Step 3: Cross multiply
    21,231.42x = 29,298.96 × 11,671.53
  4. Step 4: Simplify right side
    21,231.42x = 341,963,690.61
  5. Step 5: Solve for x
    x = 341,963,690.61/21,231.42
  6. Step 6: Final answer
    x = 16,106.49

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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.