Home / 30,055.90-45,086.86-10,331.86

Finding the Fourth Proportional to 30,055.90, 45,086.86 and 10,331.86

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Solution

The fourth proportional to 30,055.90, 45,086.86 and 10,331.86 is: 15,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,055.90 : 45,086.86 = 10,331.86 : x
  2. Step 2: Convert to fraction form
    30,055.90/45,086.86 = 10,331.86/x
  3. Step 3: Cross multiply
    30,055.90x = 45,086.86 × 10,331.86
  4. Step 4: Simplify right side
    30,055.90x = 465,831,125.36
  5. Step 5: Solve for x
    x = 465,831,125.36/30,055.90
  6. Step 6: Final answer
    x = 15,498.82

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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.