Home / 30,137.10-45,195.16-12,362.64

Finding the Fourth Proportional to 30,137.10, 45,195.16 and 12,362.64

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Solution

The fourth proportional to 30,137.10, 45,195.16 and 12,362.64 is: 18,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,137.10 : 45,195.16 = 12,362.64 : x
  2. Step 2: Convert to fraction form
    30,137.10/45,195.16 = 12,362.64/x
  3. Step 3: Cross multiply
    30,137.10x = 45,195.16 × 12,362.64
  4. Step 4: Simplify right side
    30,137.10x = 558,731,492.82
  5. Step 5: Solve for x
    x = 558,731,492.82/30,137.10
  6. Step 6: Final answer
    x = 18,539.66

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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.