Home / 25,339.92-34,981.56-15,913.68

Finding the Fourth Proportional to 25,339.92, 34,981.56 and 15,913.68

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Solution

The fourth proportional to 25,339.92, 34,981.56 and 15,913.68 is: 21,968.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.92 : 34,981.56 = 15,913.68 : x
  2. Step 2: Convert to fraction form
    25,339.92/34,981.56 = 15,913.68/x
  3. Step 3: Cross multiply
    25,339.92x = 34,981.56 × 15,913.68
  4. Step 4: Simplify right side
    25,339.92x = 556,685,351.74
  5. Step 5: Solve for x
    x = 556,685,351.74/25,339.92
  6. Step 6: Final answer
    x = 21,968.71

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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.