Home / 30,317.49-45,465.30-12,777.75

Finding the Fourth Proportional to 30,317.49, 45,465.30 and 12,777.75

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Solution

The fourth proportional to 30,317.49, 45,465.30 and 12,777.75 is: 19,162.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.49 : 45,465.30 = 12,777.75 : x
  2. Step 2: Convert to fraction form
    30,317.49/45,465.30 = 12,777.75/x
  3. Step 3: Cross multiply
    30,317.49x = 45,465.30 × 12,777.75
  4. Step 4: Simplify right side
    30,317.49x = 580,944,237.08
  5. Step 5: Solve for x
    x = 580,944,237.08/30,317.49
  6. Step 6: Final answer
    x = 19,162.02

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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.