Home / 21,807.74-30,095.61-12,377.18

Finding the Fourth Proportional to 21,807.74, 30,095.61 and 12,377.18

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Solution

The fourth proportional to 21,807.74, 30,095.61 and 12,377.18 is: 17,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.74 : 30,095.61 = 12,377.18 : x
  2. Step 2: Convert to fraction form
    21,807.74/30,095.61 = 12,377.18/x
  3. Step 3: Cross multiply
    21,807.74x = 30,095.61 × 12,377.18
  4. Step 4: Simplify right side
    21,807.74x = 372,498,782.18
  5. Step 5: Solve for x
    x = 372,498,782.18/21,807.74
  6. Step 6: Final answer
    x = 17,081.04

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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.