Home / 20,328.18-28,104.24-15,014.58

Finding the Fourth Proportional to 20,328.18, 28,104.24 and 15,014.58

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Solution

The fourth proportional to 20,328.18, 28,104.24 and 15,014.58 is: 20,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.18 : 28,104.24 = 15,014.58 : x
  2. Step 2: Convert to fraction form
    20,328.18/28,104.24 = 15,014.58/x
  3. Step 3: Cross multiply
    20,328.18x = 28,104.24 × 15,014.58
  4. Step 4: Simplify right side
    20,328.18x = 421,973,359.82
  5. Step 5: Solve for x
    x = 421,973,359.82/20,328.18
  6. Step 6: Final answer
    x = 20,758.05

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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.