Home / 21,225.32-29,290.83-11,665.80

Finding the Fourth Proportional to 21,225.32, 29,290.83 and 11,665.80

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Solution

The fourth proportional to 21,225.32, 29,290.83 and 11,665.80 is: 16,098.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.32 : 29,290.83 = 11,665.80 : x
  2. Step 2: Convert to fraction form
    21,225.32/29,290.83 = 11,665.80/x
  3. Step 3: Cross multiply
    21,225.32x = 29,290.83 × 11,665.80
  4. Step 4: Simplify right side
    21,225.32x = 341,700,964.61
  5. Step 5: Solve for x
    x = 341,700,964.61/21,225.32
  6. Step 6: Final answer
    x = 16,098.74

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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.