Home / 21,535.66-29,719.08-12,104.23

Finding the Fourth Proportional to 21,535.66, 29,719.08 and 12,104.23

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Solution

The fourth proportional to 21,535.66, 29,719.08 and 12,104.23 is: 16,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.66 : 29,719.08 = 12,104.23 : x
  2. Step 2: Convert to fraction form
    21,535.66/29,719.08 = 12,104.23/x
  3. Step 3: Cross multiply
    21,535.66x = 29,719.08 × 12,104.23
  4. Step 4: Simplify right side
    21,535.66x = 359,726,579.71
  5. Step 5: Solve for x
    x = 359,726,579.71/21,535.66
  6. Step 6: Final answer
    x = 16,703.76

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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.