Home / 30,411.72-45,622.17-13,771.35

Finding the Fourth Proportional to 30,411.72, 45,622.17 and 13,771.35

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Solution

The fourth proportional to 30,411.72, 45,622.17 and 13,771.35 is: 20,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411.72 : 45,622.17 = 13,771.35 : x
  2. Step 2: Convert to fraction form
    30,411.72/45,622.17 = 13,771.35/x
  3. Step 3: Cross multiply
    30,411.72x = 45,622.17 × 13,771.35
  4. Step 4: Simplify right side
    30,411.72x = 628,278,870.83
  5. Step 5: Solve for x
    x = 628,278,870.83/30,411.72
  6. Step 6: Final answer
    x = 20,659.10

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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.