Home / 25,221.36-34,805.16-13,890.63

Finding the Fourth Proportional to 25,221.36, 34,805.16 and 13,890.63

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Solution

The fourth proportional to 25,221.36, 34,805.16 and 13,890.63 is: 19,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.36 : 34,805.16 = 13,890.63 : x
  2. Step 2: Convert to fraction form
    25,221.36/34,805.16 = 13,890.63/x
  3. Step 3: Cross multiply
    25,221.36x = 34,805.16 × 13,890.63
  4. Step 4: Simplify right side
    25,221.36x = 483,465,599.65
  5. Step 5: Solve for x
    x = 483,465,599.65/25,221.36
  6. Step 6: Final answer
    x = 19,168.89

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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.