Home / 30,111.60-45,167.40-14,530.80

Finding the Fourth Proportional to 30,111.60, 45,167.40 and 14,530.80

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Solution

The fourth proportional to 30,111.60, 45,167.40 and 14,530.80 is: 21,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.60 : 45,167.40 = 14,530.80 : x
  2. Step 2: Convert to fraction form
    30,111.60/45,167.40 = 14,530.80/x
  3. Step 3: Cross multiply
    30,111.60x = 45,167.40 × 14,530.80
  4. Step 4: Simplify right side
    30,111.60x = 656,318,455.92
  5. Step 5: Solve for x
    x = 656,318,455.92/30,111.60
  6. Step 6: Final answer
    x = 21,796.20

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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.