Home / 30,407.80-45,614.58-12,634.72

Finding the Fourth Proportional to 30,407.80, 45,614.58 and 12,634.72

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Solution

The fourth proportional to 30,407.80, 45,614.58 and 12,634.72 is: 18,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.80 : 45,614.58 = 12,634.72 : x
  2. Step 2: Convert to fraction form
    30,407.80/45,614.58 = 12,634.72/x
  3. Step 3: Cross multiply
    30,407.80x = 45,614.58 × 12,634.72
  4. Step 4: Simplify right side
    30,407.80x = 576,327,446.22
  5. Step 5: Solve for x
    x = 576,327,446.22/30,407.80
  6. Step 6: Final answer
    x = 18,953.28

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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.