Home / 30,588.28-45,868.34-12,107.64

Finding the Fourth Proportional to 30,588.28, 45,868.34 and 12,107.64

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Solution

The fourth proportional to 30,588.28, 45,868.34 and 12,107.64 is: 18,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.28 : 45,868.34 = 12,107.64 : x
  2. Step 2: Convert to fraction form
    30,588.28/45,868.34 = 12,107.64/x
  3. Step 3: Cross multiply
    30,588.28x = 45,868.34 × 12,107.64
  4. Step 4: Simplify right side
    30,588.28x = 555,357,348.12
  5. Step 5: Solve for x
    x = 555,357,348.12/30,588.28
  6. Step 6: Final answer
    x = 18,155.89

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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.