Home / 21,033.64-29,023.28-12,081.52

Finding the Fourth Proportional to 21,033.64, 29,023.28 and 12,081.52

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Solution

The fourth proportional to 21,033.64, 29,023.28 and 12,081.52 is: 16,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.64 : 29,023.28 = 12,081.52 : x
  2. Step 2: Convert to fraction form
    21,033.64/29,023.28 = 12,081.52/x
  3. Step 3: Cross multiply
    21,033.64x = 29,023.28 × 12,081.52
  4. Step 4: Simplify right side
    21,033.64x = 350,645,337.79
  5. Step 5: Solve for x
    x = 350,645,337.79/21,033.64
  6. Step 6: Final answer
    x = 16,670.69

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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.