Home / 30,267.28-41,772.54-18,330.32

Finding the Fourth Proportional to 30,267.28, 41,772.54 and 18,330.32

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Solution

The fourth proportional to 30,267.28, 41,772.54 and 18,330.32 is: 25,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267.28 : 41,772.54 = 18,330.32 : x
  2. Step 2: Convert to fraction form
    30,267.28/41,772.54 = 18,330.32/x
  3. Step 3: Cross multiply
    30,267.28x = 41,772.54 × 18,330.32
  4. Step 4: Simplify right side
    30,267.28x = 765,704,025.41
  5. Step 5: Solve for x
    x = 765,704,025.41/30,267.28
  6. Step 6: Final answer
    x = 25,298.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.