Home / 42,104.40-63,155.19-12,522.42

Finding the Fourth Proportional to 42,104.40, 63,155.19 and 12,522.42

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Solution

The fourth proportional to 42,104.40, 63,155.19 and 12,522.42 is: 18,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,104.40 : 63,155.19 = 12,522.42 : x
  2. Step 2: Convert to fraction form
    42,104.40/63,155.19 = 12,522.42/x
  3. Step 3: Cross multiply
    42,104.40x = 63,155.19 × 12,522.42
  4. Step 4: Simplify right side
    42,104.40x = 790,855,814.36
  5. Step 5: Solve for x
    x = 790,855,814.36/42,104.40
  6. Step 6: Final answer
    x = 18,783.21

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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.