Home / 25,392.62-35,078.32-20,281.42

Finding the Fourth Proportional to 25,392.62, 35,078.32 and 20,281.42

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Solution

The fourth proportional to 25,392.62, 35,078.32 and 20,281.42 is: 28,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,392.62 : 35,078.32 = 20,281.42 : x
  2. Step 2: Convert to fraction form
    25,392.62/35,078.32 = 20,281.42/x
  3. Step 3: Cross multiply
    25,392.62x = 35,078.32 × 20,281.42
  4. Step 4: Simplify right side
    25,392.62x = 711,438,140.81
  5. Step 5: Solve for x
    x = 711,438,140.81/25,392.62
  6. Step 6: Final answer
    x = 28,017.52

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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.