Home / 36,537.78-50,420.88-20,405.93

Finding the Fourth Proportional to 36,537.78, 50,420.88 and 20,405.93

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Solution

The fourth proportional to 36,537.78, 50,420.88 and 20,405.93 is: 28,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,537.78 : 50,420.88 = 20,405.93 : x
  2. Step 2: Convert to fraction form
    36,537.78/50,420.88 = 20,405.93/x
  3. Step 3: Cross multiply
    36,537.78x = 50,420.88 × 20,405.93
  4. Step 4: Simplify right side
    36,537.78x = 1,028,884,695.71
  5. Step 5: Solve for x
    x = 1,028,884,695.71/36,537.78
  6. Step 6: Final answer
    x = 28,159.47

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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.