Home / 25,678.52-35,438.01-15,064.28

Finding the Fourth Proportional to 25,678.52, 35,438.01 and 15,064.28

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Solution

The fourth proportional to 25,678.52, 35,438.01 and 15,064.28 is: 20,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.52 : 35,438.01 = 15,064.28 : x
  2. Step 2: Convert to fraction form
    25,678.52/35,438.01 = 15,064.28/x
  3. Step 3: Cross multiply
    25,678.52x = 35,438.01 × 15,064.28
  4. Step 4: Simplify right side
    25,678.52x = 533,848,105.28
  5. Step 5: Solve for x
    x = 533,848,105.28/25,678.52
  6. Step 6: Final answer
    x = 20,789.68

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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.