Home / 30,613.58-45,938.10-12,842.66

Finding the Fourth Proportional to 30,613.58, 45,938.10 and 12,842.66

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Solution

The fourth proportional to 30,613.58, 45,938.10 and 12,842.66 is: 19,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.58 : 45,938.10 = 12,842.66 : x
  2. Step 2: Convert to fraction form
    30,613.58/45,938.10 = 12,842.66/x
  3. Step 3: Cross multiply
    30,613.58x = 45,938.10 × 12,842.66
  4. Step 4: Simplify right side
    30,613.58x = 589,967,399.35
  5. Step 5: Solve for x
    x = 589,967,399.35/30,613.58
  6. Step 6: Final answer
    x = 19,271.43

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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.