Home / 21,205.54-29,263.98-11,774.20

Finding the Fourth Proportional to 21,205.54, 29,263.98 and 11,774.20

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Solution

The fourth proportional to 21,205.54, 29,263.98 and 11,774.20 is: 16,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.54 : 29,263.98 = 11,774.20 : x
  2. Step 2: Convert to fraction form
    21,205.54/29,263.98 = 11,774.20/x
  3. Step 3: Cross multiply
    21,205.54x = 29,263.98 × 11,774.20
  4. Step 4: Simplify right side
    21,205.54x = 344,559,953.32
  5. Step 5: Solve for x
    x = 344,559,953.32/21,205.54
  6. Step 6: Final answer
    x = 16,248.58

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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.