Home / 30,358.35-45,232.29-28,660.69

Finding the Fourth Proportional to 30,358.35, 45,232.29 and 28,660.69

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Solution

The fourth proportional to 30,358.35, 45,232.29 and 28,660.69 is: 42,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.35 : 45,232.29 = 28,660.69 : x
  2. Step 2: Convert to fraction form
    30,358.35/45,232.29 = 28,660.69/x
  3. Step 3: Cross multiply
    30,358.35x = 45,232.29 × 28,660.69
  4. Step 4: Simplify right side
    30,358.35x = 1,296,388,528.60
  5. Step 5: Solve for x
    x = 1,296,388,528.60/30,358.35
  6. Step 6: Final answer
    x = 42,702.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.