Home / 30,025.28-41,434.08-16,412.78

Finding the Fourth Proportional to 30,025.28, 41,434.08 and 16,412.78

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Solution

The fourth proportional to 30,025.28, 41,434.08 and 16,412.78 is: 22,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025.28 : 41,434.08 = 16,412.78 : x
  2. Step 2: Convert to fraction form
    30,025.28/41,434.08 = 16,412.78/x
  3. Step 3: Cross multiply
    30,025.28x = 41,434.08 × 16,412.78
  4. Step 4: Simplify right side
    30,025.28x = 680,048,439.54
  5. Step 5: Solve for x
    x = 680,048,439.54/30,025.28
  6. Step 6: Final answer
    x = 22,649.20

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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.