Home / 14,482.80-21,740.40-13,531.05

Finding the Fourth Proportional to 14,482.80, 21,740.40 and 13,531.05

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Solution

The fourth proportional to 14,482.80, 21,740.40 and 13,531.05 is: 20,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.80 : 21,740.40 = 13,531.05 : x
  2. Step 2: Convert to fraction form
    14,482.80/21,740.40 = 13,531.05/x
  3. Step 3: Cross multiply
    14,482.80x = 21,740.40 × 13,531.05
  4. Step 4: Simplify right side
    14,482.80x = 294,170,439.42
  5. Step 5: Solve for x
    x = 294,170,439.42/14,482.80
  6. Step 6: Final answer
    x = 20,311.71

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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.