Home / 25,022.25-34,530.71-15,590.81

Finding the Fourth Proportional to 25,022.25, 34,530.71 and 15,590.81

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Solution

The fourth proportional to 25,022.25, 34,530.71 and 15,590.81 is: 21,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,022.25 : 34,530.71 = 15,590.81 : x
  2. Step 2: Convert to fraction form
    25,022.25/34,530.71 = 15,590.81/x
  3. Step 3: Cross multiply
    25,022.25x = 34,530.71 × 15,590.81
  4. Step 4: Simplify right side
    25,022.25x = 538,361,747.15
  5. Step 5: Solve for x
    x = 538,361,747.15/25,022.25
  6. Step 6: Final answer
    x = 21,515.32

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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.