Home / 25,890.48-38,828.64-7,166.04

Finding the Fourth Proportional to 25,890.48, 38,828.64 and 7,166.04

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Solution

The fourth proportional to 25,890.48, 38,828.64 and 7,166.04 is: 10,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.48 : 38,828.64 = 7,166.04 : x
  2. Step 2: Convert to fraction form
    25,890.48/38,828.64 = 7,166.04/x
  3. Step 3: Cross multiply
    25,890.48x = 38,828.64 × 7,166.04
  4. Step 4: Simplify right side
    25,890.48x = 278,247,587.39
  5. Step 5: Solve for x
    x = 278,247,587.39/25,890.48
  6. Step 6: Final answer
    x = 10,747.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.