Home / 30,196.16-45,276.96-12,651.20

Finding the Fourth Proportional to 30,196.16, 45,276.96 and 12,651.20

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Solution

The fourth proportional to 30,196.16, 45,276.96 and 12,651.20 is: 18,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,196.16 : 45,276.96 = 12,651.20 : x
  2. Step 2: Convert to fraction form
    30,196.16/45,276.96 = 12,651.20/x
  3. Step 3: Cross multiply
    30,196.16x = 45,276.96 × 12,651.20
  4. Step 4: Simplify right side
    30,196.16x = 572,807,876.35
  5. Step 5: Solve for x
    x = 572,807,876.35/30,196.16
  6. Step 6: Final answer
    x = 18,969.56

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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.