Home / 21,564.52-29,756.63-12,132.88

Finding the Fourth Proportional to 21,564.52, 29,756.63 and 12,132.88

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Solution

The fourth proportional to 21,564.52, 29,756.63 and 12,132.88 is: 16,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.52 : 29,756.63 = 12,132.88 : x
  2. Step 2: Convert to fraction form
    21,564.52/29,756.63 = 12,132.88/x
  3. Step 3: Cross multiply
    21,564.52x = 29,756.63 × 12,132.88
  4. Step 4: Simplify right side
    21,564.52x = 361,033,620.99
  5. Step 5: Solve for x
    x = 361,033,620.99/21,564.52
  6. Step 6: Final answer
    x = 16,742.02

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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.