Home / 21,809.30-32,671.35-10,394.98

Finding the Fourth Proportional to 21,809.30, 32,671.35 and 10,394.98

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Solution

The fourth proportional to 21,809.30, 32,671.35 and 10,394.98 is: 15,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.30 : 32,671.35 = 10,394.98 : x
  2. Step 2: Convert to fraction form
    21,809.30/32,671.35 = 10,394.98/x
  3. Step 3: Cross multiply
    21,809.30x = 32,671.35 × 10,394.98
  4. Step 4: Simplify right side
    21,809.30x = 339,617,977.85
  5. Step 5: Solve for x
    x = 339,617,977.85/21,809.30
  6. Step 6: Final answer
    x = 15,572.16

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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.