Home / 30,156.52-45,241.34-12,617.32

Finding the Fourth Proportional to 30,156.52, 45,241.34 and 12,617.32

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Solution

The fourth proportional to 30,156.52, 45,241.34 and 12,617.32 is: 18,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.52 : 45,241.34 = 12,617.32 : x
  2. Step 2: Convert to fraction form
    30,156.52/45,241.34 = 12,617.32/x
  3. Step 3: Cross multiply
    30,156.52x = 45,241.34 × 12,617.32
  4. Step 4: Simplify right side
    30,156.52x = 570,824,464.01
  5. Step 5: Solve for x
    x = 570,824,464.01/30,156.52
  6. Step 6: Final answer
    x = 18,928.72

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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.