Home / 21,230.84-29,298.54-11,671.36

Finding the Fourth Proportional to 21,230.84, 29,298.54 and 11,671.36

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Solution

The fourth proportional to 21,230.84, 29,298.54 and 11,671.36 is: 16,106.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.84 : 29,298.54 = 11,671.36 : x
  2. Step 2: Convert to fraction form
    21,230.84/29,298.54 = 11,671.36/x
  3. Step 3: Cross multiply
    21,230.84x = 29,298.54 × 11,671.36
  4. Step 4: Simplify right side
    21,230.84x = 341,953,778.34
  5. Step 5: Solve for x
    x = 341,953,778.34/21,230.84
  6. Step 6: Final answer
    x = 16,106.46

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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.