Home / 35,780.96-53,680.08-12,406.88

Finding the Fourth Proportional to 35,780.96, 53,680.08 and 12,406.88

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Solution

The fourth proportional to 35,780.96, 53,680.08 and 12,406.88 is: 18,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.96 : 53,680.08 = 12,406.88 : x
  2. Step 2: Convert to fraction form
    35,780.96/53,680.08 = 12,406.88/x
  3. Step 3: Cross multiply
    35,780.96x = 53,680.08 × 12,406.88
  4. Step 4: Simplify right side
    35,780.96x = 666,002,310.95
  5. Step 5: Solve for x
    x = 666,002,310.95/35,780.96
  6. Step 6: Final answer
    x = 18,613.32

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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.