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Finding the Fourth Proportional to 25,603.38, 38,405.06 and 7,135.38

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Solution

The fourth proportional to 25,603.38, 38,405.06 and 7,135.38 is: 10,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.38 : 38,405.06 = 7,135.38 : x
  2. Step 2: Convert to fraction form
    25,603.38/38,405.06 = 7,135.38/x
  3. Step 3: Cross multiply
    25,603.38x = 38,405.06 × 7,135.38
  4. Step 4: Simplify right side
    25,603.38x = 274,034,697.02
  5. Step 5: Solve for x
    x = 274,034,697.02/25,603.38
  6. Step 6: Final answer
    x = 10,703.07

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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.