Home / 30,618.42-45,929.30-9,561.35

Finding the Fourth Proportional to 30,618.42, 45,929.30 and 9,561.35

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Solution

The fourth proportional to 30,618.42, 45,929.30 and 9,561.35 is: 14,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.42 : 45,929.30 = 9,561.35 : x
  2. Step 2: Convert to fraction form
    30,618.42/45,929.30 = 9,561.35/x
  3. Step 3: Cross multiply
    30,618.42x = 45,929.30 × 9,561.35
  4. Step 4: Simplify right side
    30,618.42x = 439,146,179.57
  5. Step 5: Solve for x
    x = 439,146,179.57/30,618.42
  6. Step 6: Final answer
    x = 14,342.55

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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.