Home / 21,798.12-30,080.52-12,366.48

Finding the Fourth Proportional to 21,798.12, 30,080.52 and 12,366.48

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Solution

The fourth proportional to 21,798.12, 30,080.52 and 12,366.48 is: 17,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.12 : 30,080.52 = 12,366.48 : x
  2. Step 2: Convert to fraction form
    21,798.12/30,080.52 = 12,366.48/x
  3. Step 3: Cross multiply
    21,798.12x = 30,080.52 × 12,366.48
  4. Step 4: Simplify right side
    21,798.12x = 371,990,148.97
  5. Step 5: Solve for x
    x = 371,990,148.97/21,798.12
  6. Step 6: Final answer
    x = 17,065.24

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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.