Home / 30,507.06-45,760.86-10,785.90

Finding the Fourth Proportional to 30,507.06, 45,760.86 and 10,785.90

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Solution

The fourth proportional to 30,507.06, 45,760.86 and 10,785.90 is: 16,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,507.06 : 45,760.86 = 10,785.90 : x
  2. Step 2: Convert to fraction form
    30,507.06/45,760.86 = 10,785.90/x
  3. Step 3: Cross multiply
    30,507.06x = 45,760.86 × 10,785.90
  4. Step 4: Simplify right side
    30,507.06x = 493,572,059.87
  5. Step 5: Solve for x
    x = 493,572,059.87/30,507.06
  6. Step 6: Final answer
    x = 16,178.95

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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.