Home / 30,514.64-45,776.28-15,731.60

Finding the Fourth Proportional to 30,514.64, 45,776.28 and 15,731.60

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Solution

The fourth proportional to 30,514.64, 45,776.28 and 15,731.60 is: 23,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,514.64 : 45,776.28 = 15,731.60 : x
  2. Step 2: Convert to fraction form
    30,514.64/45,776.28 = 15,731.60/x
  3. Step 3: Cross multiply
    30,514.64x = 45,776.28 × 15,731.60
  4. Step 4: Simplify right side
    30,514.64x = 720,134,126.45
  5. Step 5: Solve for x
    x = 720,134,126.45/30,514.64
  6. Step 6: Final answer
    x = 23,599.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.