Home / 21,254.06-29,330.61-11,822.63

Finding the Fourth Proportional to 21,254.06, 29,330.61 and 11,822.63

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Solution

The fourth proportional to 21,254.06, 29,330.61 and 11,822.63 is: 16,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.06 : 29,330.61 = 11,822.63 : x
  2. Step 2: Convert to fraction form
    21,254.06/29,330.61 = 11,822.63/x
  3. Step 3: Cross multiply
    21,254.06x = 29,330.61 × 11,822.63
  4. Step 4: Simplify right side
    21,254.06x = 346,764,758.72
  5. Step 5: Solve for x
    x = 346,764,758.72/21,254.06
  6. Step 6: Final answer
    x = 16,315.22

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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.