Home / 20,482.50-28,267.99-12,530.03

Finding the Fourth Proportional to 20,482.50, 28,267.99 and 12,530.03

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Solution

The fourth proportional to 20,482.50, 28,267.99 and 12,530.03 is: 17,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.50 : 28,267.99 = 12,530.03 : x
  2. Step 2: Convert to fraction form
    20,482.50/28,267.99 = 12,530.03/x
  3. Step 3: Cross multiply
    20,482.50x = 28,267.99 × 12,530.03
  4. Step 4: Simplify right side
    20,482.50x = 354,198,590.07
  5. Step 5: Solve for x
    x = 354,198,590.07/20,482.50
  6. Step 6: Final answer
    x = 17,292.74

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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.