Home / 21,032.91-29,025.36-12,080.99

Finding the Fourth Proportional to 21,032.91, 29,025.36 and 12,080.99

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Solution

The fourth proportional to 21,032.91, 29,025.36 and 12,080.99 is: 16,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.91 : 29,025.36 = 12,080.99 : x
  2. Step 2: Convert to fraction form
    21,032.91/29,025.36 = 12,080.99/x
  3. Step 3: Cross multiply
    21,032.91x = 29,025.36 × 12,080.99
  4. Step 4: Simplify right side
    21,032.91x = 350,655,156.47
  5. Step 5: Solve for x
    x = 350,655,156.47/21,032.91
  6. Step 6: Final answer
    x = 16,671.74

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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.