Home / 42,361.18-63,542.22-12,779.27

Finding the Fourth Proportional to 42,361.18, 63,542.22 and 12,779.27

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Solution

The fourth proportional to 42,361.18, 63,542.22 and 12,779.27 is: 19,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,361.18 : 63,542.22 = 12,779.27 : x
  2. Step 2: Convert to fraction form
    42,361.18/63,542.22 = 12,779.27/x
  3. Step 3: Cross multiply
    42,361.18x = 63,542.22 × 12,779.27
  4. Step 4: Simplify right side
    42,361.18x = 812,023,106.35
  5. Step 5: Solve for x
    x = 812,023,106.35/42,361.18
  6. Step 6: Final answer
    x = 19,169.04

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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.