Home / 42,136.11-63,213.29-12,556.32

Finding the Fourth Proportional to 42,136.11, 63,213.29 and 12,556.32

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Solution

The fourth proportional to 42,136.11, 63,213.29 and 12,556.32 is: 18,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,136.11 : 63,213.29 = 12,556.32 : x
  2. Step 2: Convert to fraction form
    42,136.11/63,213.29 = 12,556.32/x
  3. Step 3: Cross multiply
    42,136.11x = 63,213.29 × 12,556.32
  4. Step 4: Simplify right side
    42,136.11x = 793,726,234.71
  5. Step 5: Solve for x
    x = 793,726,234.71/42,136.11
  6. Step 6: Final answer
    x = 18,837.20

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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.