Home / 30,049.76-45,060.96-12,509.12

Finding the Fourth Proportional to 30,049.76, 45,060.96 and 12,509.12

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Solution

The fourth proportional to 30,049.76, 45,060.96 and 12,509.12 is: 18,757.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.76 : 45,060.96 = 12,509.12 : x
  2. Step 2: Convert to fraction form
    30,049.76/45,060.96 = 12,509.12/x
  3. Step 3: Cross multiply
    30,049.76x = 45,060.96 × 12,509.12
  4. Step 4: Simplify right side
    30,049.76x = 563,672,955.96
  5. Step 5: Solve for x
    x = 563,672,955.96/30,049.76
  6. Step 6: Final answer
    x = 18,757.99

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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.