Home / 30,379.23-45,567.23-10,659.78

Finding the Fourth Proportional to 30,379.23, 45,567.23 and 10,659.78

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Solution

The fourth proportional to 30,379.23, 45,567.23 and 10,659.78 is: 15,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.23 : 45,567.23 = 10,659.78 : x
  2. Step 2: Convert to fraction form
    30,379.23/45,567.23 = 10,659.78/x
  3. Step 3: Cross multiply
    30,379.23x = 45,567.23 × 10,659.78
  4. Step 4: Simplify right side
    30,379.23x = 485,736,593.71
  5. Step 5: Solve for x
    x = 485,736,593.71/30,379.23
  6. Step 6: Final answer
    x = 15,989.10

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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.