Home / 25,617.21-35,338.30-20,842.48

Finding the Fourth Proportional to 25,617.21, 35,338.30 and 20,842.48

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Solution

The fourth proportional to 25,617.21, 35,338.30 and 20,842.48 is: 28,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,617.21 : 35,338.30 = 20,842.48 : x
  2. Step 2: Convert to fraction form
    25,617.21/35,338.30 = 20,842.48/x
  3. Step 3: Cross multiply
    25,617.21x = 35,338.30 × 20,842.48
  4. Step 4: Simplify right side
    25,617.21x = 736,537,810.98
  5. Step 5: Solve for x
    x = 736,537,810.98/25,617.21
  6. Step 6: Final answer
    x = 28,751.68

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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.