Home / 30,228.90-45,351.51-10,508.55

Finding the Fourth Proportional to 30,228.90, 45,351.51 and 10,508.55

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Solution

The fourth proportional to 30,228.90, 45,351.51 and 10,508.55 is: 15,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.90 : 45,351.51 = 10,508.55 : x
  2. Step 2: Convert to fraction form
    30,228.90/45,351.51 = 10,508.55/x
  3. Step 3: Cross multiply
    30,228.90x = 45,351.51 × 10,508.55
  4. Step 4: Simplify right side
    30,228.90x = 476,578,610.41
  5. Step 5: Solve for x
    x = 476,578,610.41/30,228.90
  6. Step 6: Final answer
    x = 15,765.66

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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.