Home / 13,677.12-20,498.40-13,530.24

Finding the Fourth Proportional to 13,677.12, 20,498.40 and 13,530.24

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Solution

The fourth proportional to 13,677.12, 20,498.40 and 13,530.24 is: 20,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.12 : 20,498.40 = 13,530.24 : x
  2. Step 2: Convert to fraction form
    13,677.12/20,498.40 = 13,530.24/x
  3. Step 3: Cross multiply
    13,677.12x = 20,498.40 × 13,530.24
  4. Step 4: Simplify right side
    13,677.12x = 277,348,271.62
  5. Step 5: Solve for x
    x = 277,348,271.62/13,677.12
  6. Step 6: Final answer
    x = 20,278.27

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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.