Home / 20,130.60-30,166.20-14,595.60

Finding the Fourth Proportional to 20,130.60, 30,166.20 and 14,595.60

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Solution

The fourth proportional to 20,130.60, 30,166.20 and 14,595.60 is: 21,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.60 : 30,166.20 = 14,595.60 : x
  2. Step 2: Convert to fraction form
    20,130.60/30,166.20 = 14,595.60/x
  3. Step 3: Cross multiply
    20,130.60x = 30,166.20 × 14,595.60
  4. Step 4: Simplify right side
    20,130.60x = 440,293,788.72
  5. Step 5: Solve for x
    x = 440,293,788.72/20,130.60
  6. Step 6: Final answer
    x = 21,871.87

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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.