Home / 21,803.04-30,080.46-14,253.72

Finding the Fourth Proportional to 21,803.04, 30,080.46 and 14,253.72

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Solution

The fourth proportional to 21,803.04, 30,080.46 and 14,253.72 is: 19,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.04 : 30,080.46 = 14,253.72 : x
  2. Step 2: Convert to fraction form
    21,803.04/30,080.46 = 14,253.72/x
  3. Step 3: Cross multiply
    21,803.04x = 30,080.46 × 14,253.72
  4. Step 4: Simplify right side
    21,803.04x = 428,758,454.31
  5. Step 5: Solve for x
    x = 428,758,454.31/21,803.04
  6. Step 6: Final answer
    x = 19,665.08

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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.