Home / 21,823.31-32,749.32-11,969.50

Finding the Fourth Proportional to 21,823.31, 32,749.32 and 11,969.50

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Solution

The fourth proportional to 21,823.31, 32,749.32 and 11,969.50 is: 17,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.31 : 32,749.32 = 11,969.50 : x
  2. Step 2: Convert to fraction form
    21,823.31/32,749.32 = 11,969.50/x
  3. Step 3: Cross multiply
    21,823.31x = 32,749.32 × 11,969.50
  4. Step 4: Simplify right side
    21,823.31x = 391,992,985.74
  5. Step 5: Solve for x
    x = 391,992,985.74/21,823.31
  6. Step 6: Final answer
    x = 17,962.12

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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.