Home / 25,051.38-34,570.92-13,720.88

Finding the Fourth Proportional to 25,051.38, 34,570.92 and 13,720.88

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Solution

The fourth proportional to 25,051.38, 34,570.92 and 13,720.88 is: 18,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,051.38 : 34,570.92 = 13,720.88 : x
  2. Step 2: Convert to fraction form
    25,051.38/34,570.92 = 13,720.88/x
  3. Step 3: Cross multiply
    25,051.38x = 34,570.92 × 13,720.88
  4. Step 4: Simplify right side
    25,051.38x = 474,343,311.05
  5. Step 5: Solve for x
    x = 474,343,311.05/25,051.38
  6. Step 6: Final answer
    x = 18,934.82

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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.