Home / 42,482.04-63,720.62-20,310.72

Finding the Fourth Proportional to 42,482.04, 63,720.62 and 20,310.72

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Solution

The fourth proportional to 42,482.04, 63,720.62 and 20,310.72 is: 30,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,482.04 : 63,720.62 = 20,310.72 : x
  2. Step 2: Convert to fraction form
    42,482.04/63,720.62 = 20,310.72/x
  3. Step 3: Cross multiply
    42,482.04x = 63,720.62 × 20,310.72
  4. Step 4: Simplify right side
    42,482.04x = 1,294,211,671.05
  5. Step 5: Solve for x
    x = 1,294,211,671.05/42,482.04
  6. Step 6: Final answer
    x = 30,464.91

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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.