Home / 30,624.90-45,937.56-8,439.48

Finding the Fourth Proportional to 30,624.90, 45,937.56 and 8,439.48

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Solution

The fourth proportional to 30,624.90, 45,937.56 and 8,439.48 is: 12,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.90 : 45,937.56 = 8,439.48 : x
  2. Step 2: Convert to fraction form
    30,624.90/45,937.56 = 8,439.48/x
  3. Step 3: Cross multiply
    30,624.90x = 45,937.56 × 8,439.48
  4. Step 4: Simplify right side
    30,624.90x = 387,689,118.87
  5. Step 5: Solve for x
    x = 387,689,118.87/30,624.90
  6. Step 6: Final answer
    x = 12,659.28

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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.