Home / 30,156.46-45,255.44-13,535.08

Finding the Fourth Proportional to 30,156.46, 45,255.44 and 13,535.08

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Solution

The fourth proportional to 30,156.46, 45,255.44 and 13,535.08 is: 20,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.46 : 45,255.44 = 13,535.08 : x
  2. Step 2: Convert to fraction form
    30,156.46/45,255.44 = 13,535.08/x
  3. Step 3: Cross multiply
    30,156.46x = 45,255.44 × 13,535.08
  4. Step 4: Simplify right side
    30,156.46x = 612,535,921.53
  5. Step 5: Solve for x
    x = 612,535,921.53/30,156.46
  6. Step 6: Final answer
    x = 20,311.93

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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.