Home / 30,903.60-46,355.40-16,858.20

Finding the Fourth Proportional to 30,903.60, 46,355.40 and 16,858.20

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Solution

The fourth proportional to 30,903.60, 46,355.40 and 16,858.20 is: 25,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.60 : 46,355.40 = 16,858.20 : x
  2. Step 2: Convert to fraction form
    30,903.60/46,355.40 = 16,858.20/x
  3. Step 3: Cross multiply
    30,903.60x = 46,355.40 × 16,858.20
  4. Step 4: Simplify right side
    30,903.60x = 781,468,604.28
  5. Step 5: Solve for x
    x = 781,468,604.28/30,903.60
  6. Step 6: Final answer
    x = 25,287.30

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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.