Home / 30,228.66-45,347.85-10,512.81

Finding the Fourth Proportional to 30,228.66, 45,347.85 and 10,512.81

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Solution

The fourth proportional to 30,228.66, 45,347.85 and 10,512.81 is: 15,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.66 : 45,347.85 = 10,512.81 : x
  2. Step 2: Convert to fraction form
    30,228.66/45,347.85 = 10,512.81/x
  3. Step 3: Cross multiply
    30,228.66x = 45,347.85 × 10,512.81
  4. Step 4: Simplify right side
    30,228.66x = 476,733,330.96
  5. Step 5: Solve for x
    x = 476,733,330.96/30,228.66
  6. Step 6: Final answer
    x = 15,770.91

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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.