Home / 35,130.62-48,466.68-21,678.50

Finding the Fourth Proportional to 35,130.62, 48,466.68 and 21,678.50

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Solution

The fourth proportional to 35,130.62, 48,466.68 and 21,678.50 is: 29,907.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,130.62 : 48,466.68 = 21,678.50 : x
  2. Step 2: Convert to fraction form
    35,130.62/48,466.68 = 21,678.50/x
  3. Step 3: Cross multiply
    35,130.62x = 48,466.68 × 21,678.50
  4. Step 4: Simplify right side
    35,130.62x = 1,050,684,922.38
  5. Step 5: Solve for x
    x = 1,050,684,922.38/35,130.62
  6. Step 6: Final answer
    x = 29,907.95

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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.