Home / 21,043.59-29,040.74-11,612.76

Finding the Fourth Proportional to 21,043.59, 29,040.74 and 11,612.76

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Solution

The fourth proportional to 21,043.59, 29,040.74 and 11,612.76 is: 16,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.59 : 29,040.74 = 11,612.76 : x
  2. Step 2: Convert to fraction form
    21,043.59/29,040.74 = 11,612.76/x
  3. Step 3: Cross multiply
    21,043.59x = 29,040.74 × 11,612.76
  4. Step 4: Simplify right side
    21,043.59x = 337,243,143.84
  5. Step 5: Solve for x
    x = 337,243,143.84/21,043.59
  6. Step 6: Final answer
    x = 16,025.93

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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.