Home / 30,389.76-45,580.80-9,613.44

Finding the Fourth Proportional to 30,389.76, 45,580.80 and 9,613.44

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Solution

The fourth proportional to 30,389.76, 45,580.80 and 9,613.44 is: 14,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.76 : 45,580.80 = 9,613.44 : x
  2. Step 2: Convert to fraction form
    30,389.76/45,580.80 = 9,613.44/x
  3. Step 3: Cross multiply
    30,389.76x = 45,580.80 × 9,613.44
  4. Step 4: Simplify right side
    30,389.76x = 438,188,285.95
  5. Step 5: Solve for x
    x = 438,188,285.95/30,389.76
  6. Step 6: Final answer
    x = 14,418.95

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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.