Home / 30,882.87-42,620.99-25,838.19

Finding the Fourth Proportional to 30,882.87, 42,620.99 and 25,838.19

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Solution

The fourth proportional to 30,882.87, 42,620.99 and 25,838.19 is: 35,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882.87 : 42,620.99 = 25,838.19 : x
  2. Step 2: Convert to fraction form
    30,882.87/42,620.99 = 25,838.19/x
  3. Step 3: Cross multiply
    30,882.87x = 42,620.99 × 25,838.19
  4. Step 4: Simplify right side
    30,882.87x = 1,101,249,108.42
  5. Step 5: Solve for x
    x = 1,101,249,108.42/30,882.87
  6. Step 6: Final answer
    x = 35,658.90

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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.