Home / 42,284.28-63,450.72-18,907.68

Finding the Fourth Proportional to 42,284.28, 63,450.72 and 18,907.68

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Solution

The fourth proportional to 42,284.28, 63,450.72 and 18,907.68 is: 28,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,284.28 : 63,450.72 = 18,907.68 : x
  2. Step 2: Convert to fraction form
    42,284.28/63,450.72 = 18,907.68/x
  3. Step 3: Cross multiply
    42,284.28x = 63,450.72 × 18,907.68
  4. Step 4: Simplify right side
    42,284.28x = 1,199,705,909.53
  5. Step 5: Solve for x
    x = 1,199,705,909.53/42,284.28
  6. Step 6: Final answer
    x = 28,372.39

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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.