Home / 13,582.80-20,374.20-10,302.30

Finding the Fourth Proportional to 13,582.80, 20,374.20 and 10,302.30

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Solution

The fourth proportional to 13,582.80, 20,374.20 and 10,302.30 is: 15,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.80 : 20,374.20 = 10,302.30 : x
  2. Step 2: Convert to fraction form
    13,582.80/20,374.20 = 10,302.30/x
  3. Step 3: Cross multiply
    13,582.80x = 20,374.20 × 10,302.30
  4. Step 4: Simplify right side
    13,582.80x = 209,901,120.66
  5. Step 5: Solve for x
    x = 209,901,120.66/13,582.80
  6. Step 6: Final answer
    x = 15,453.45

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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.