Home / 21,033.66-29,026.40-12,081.74

Finding the Fourth Proportional to 21,033.66, 29,026.40 and 12,081.74

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Solution

The fourth proportional to 21,033.66, 29,026.40 and 12,081.74 is: 16,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.66 : 29,026.40 = 12,081.74 : x
  2. Step 2: Convert to fraction form
    21,033.66/29,026.40 = 12,081.74/x
  3. Step 3: Cross multiply
    21,033.66x = 29,026.40 × 12,081.74
  4. Step 4: Simplify right side
    21,033.66x = 350,689,430.09
  5. Step 5: Solve for x
    x = 350,689,430.09/21,033.66
  6. Step 6: Final answer
    x = 16,672.77

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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.