Home / 15,576.48-21,443.04-14,079.96

Finding the Fourth Proportional to 15,576.48, 21,443.04 and 14,079.96

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Solution

The fourth proportional to 15,576.48, 21,443.04 and 14,079.96 is: 19,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.48 : 21,443.04 = 14,079.96 : x
  2. Step 2: Convert to fraction form
    15,576.48/21,443.04 = 14,079.96/x
  3. Step 3: Cross multiply
    15,576.48x = 21,443.04 × 14,079.96
  4. Step 4: Simplify right side
    15,576.48x = 301,917,145.48
  5. Step 5: Solve for x
    x = 301,917,145.48/15,576.48
  6. Step 6: Final answer
    x = 19,382.89

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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.