Home / 25,338.56-34,964.88-15,890.72

Finding the Fourth Proportional to 25,338.56, 34,964.88 and 15,890.72

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Solution

The fourth proportional to 25,338.56, 34,964.88 and 15,890.72 is: 21,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.56 : 34,964.88 = 15,890.72 : x
  2. Step 2: Convert to fraction form
    25,338.56/34,964.88 = 15,890.72/x
  3. Step 3: Cross multiply
    25,338.56x = 34,964.88 × 15,890.72
  4. Step 4: Simplify right side
    25,338.56x = 555,617,117.91
  5. Step 5: Solve for x
    x = 555,617,117.91/25,338.56
  6. Step 6: Final answer
    x = 21,927.73

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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.