Home / 30,254.92-45,456.53-28,576.40

Finding the Fourth Proportional to 30,254.92, 45,456.53 and 28,576.40

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Solution

The fourth proportional to 30,254.92, 45,456.53 and 28,576.40 is: 42,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.92 : 45,456.53 = 28,576.40 : x
  2. Step 2: Convert to fraction form
    30,254.92/45,456.53 = 28,576.40/x
  3. Step 3: Cross multiply
    30,254.92x = 45,456.53 × 28,576.40
  4. Step 4: Simplify right side
    30,254.92x = 1,298,983,613.73
  5. Step 5: Solve for x
    x = 1,298,983,613.73/30,254.92
  6. Step 6: Final answer
    x = 42,934.63

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1.5x scale

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.