Home / 37,418.12-51,636.90-20,651

Finding the Fourth Proportional to 37,418.12, 51,636.90 and 20,651

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Solution

The fourth proportional to 37,418.12, 51,636.90 and 20,651 is: 28,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,418.12 : 51,636.90 = 20,651 : x
  2. Step 2: Convert to fraction form
    37,418.12/51,636.90 = 20,651/x
  3. Step 3: Cross multiply
    37,418.12x = 51,636.90 × 20,651
  4. Step 4: Simplify right side
    37,418.12x = 1,066,353,621.90
  5. Step 5: Solve for x
    x = 1,066,353,621.90/37,418.12
  6. Step 6: Final answer
    x = 28,498.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.