Home / 21,564.45-29,758.88-12,133.01

Finding the Fourth Proportional to 21,564.45, 29,758.88 and 12,133.01

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Solution

The fourth proportional to 21,564.45, 29,758.88 and 12,133.01 is: 16,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.45 : 29,758.88 = 12,133.01 : x
  2. Step 2: Convert to fraction form
    21,564.45/29,758.88 = 12,133.01/x
  3. Step 3: Cross multiply
    21,564.45x = 29,758.88 × 12,133.01
  4. Step 4: Simplify right side
    21,564.45x = 361,064,788.63
  5. Step 5: Solve for x
    x = 361,064,788.63/21,564.45
  6. Step 6: Final answer
    x = 16,743.52

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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.