Home / 30,135.21-45,166.96-22,715.20

Finding the Fourth Proportional to 30,135.21, 45,166.96 and 22,715.20

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Solution

The fourth proportional to 30,135.21, 45,166.96 and 22,715.20 is: 34,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.21 : 45,166.96 = 22,715.20 : x
  2. Step 2: Convert to fraction form
    30,135.21/45,166.96 = 22,715.20/x
  3. Step 3: Cross multiply
    30,135.21x = 45,166.96 × 22,715.20
  4. Step 4: Simplify right side
    30,135.21x = 1,025,976,529.79
  5. Step 5: Solve for x
    x = 1,025,976,529.79/30,135.21
  6. Step 6: Final answer
    x = 34,045.77

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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.