Home / 30,403.74-45,610.50-12,873.72

Finding the Fourth Proportional to 30,403.74, 45,610.50 and 12,873.72

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Solution

The fourth proportional to 30,403.74, 45,610.50 and 12,873.72 is: 19,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.74 : 45,610.50 = 12,873.72 : x
  2. Step 2: Convert to fraction form
    30,403.74/45,610.50 = 12,873.72/x
  3. Step 3: Cross multiply
    30,403.74x = 45,610.50 × 12,873.72
  4. Step 4: Simplify right side
    30,403.74x = 587,176,806.06
  5. Step 5: Solve for x
    x = 587,176,806.06/30,403.74
  6. Step 6: Final answer
    x = 19,312.65

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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.