Home / 21,601.65-29,811.84-12,042.18

Finding the Fourth Proportional to 21,601.65, 29,811.84 and 12,042.18

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Solution

The fourth proportional to 21,601.65, 29,811.84 and 12,042.18 is: 16,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.65 : 29,811.84 = 12,042.18 : x
  2. Step 2: Convert to fraction form
    21,601.65/29,811.84 = 12,042.18/x
  3. Step 3: Cross multiply
    21,601.65x = 29,811.84 × 12,042.18
  4. Step 4: Simplify right side
    21,601.65x = 358,999,543.41
  5. Step 5: Solve for x
    x = 358,999,543.41/21,601.65
  6. Step 6: Final answer
    x = 16,619.08

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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.