Home / 42,863.21-64,299.04-14,779.57

Finding the Fourth Proportional to 42,863.21, 64,299.04 and 14,779.57

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Solution

The fourth proportional to 42,863.21, 64,299.04 and 14,779.57 is: 22,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,863.21 : 64,299.04 = 14,779.57 : x
  2. Step 2: Convert to fraction form
    42,863.21/64,299.04 = 14,779.57/x
  3. Step 3: Cross multiply
    42,863.21x = 64,299.04 × 14,779.57
  4. Step 4: Simplify right side
    42,863.21x = 950,311,841.12
  5. Step 5: Solve for x
    x = 950,311,841.12/42,863.21
  6. Step 6: Final answer
    x = 22,170.81

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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.