Home / 29,182.32-40,215.42-21,211.92

Finding the Fourth Proportional to 29,182.32, 40,215.42 and 21,211.92

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Solution

The fourth proportional to 29,182.32, 40,215.42 and 21,211.92 is: 29,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,182.32 : 40,215.42 = 21,211.92 : x
  2. Step 2: Convert to fraction form
    29,182.32/40,215.42 = 21,211.92/x
  3. Step 3: Cross multiply
    29,182.32x = 40,215.42 × 21,211.92
  4. Step 4: Simplify right side
    29,182.32x = 853,046,271.81
  5. Step 5: Solve for x
    x = 853,046,271.81/29,182.32
  6. Step 6: Final answer
    x = 29,231.61

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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.