Home / 30,977.58-46,468.13-8,789.20

Finding the Fourth Proportional to 30,977.58, 46,468.13 and 8,789.20

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Solution

The fourth proportional to 30,977.58, 46,468.13 and 8,789.20 is: 13,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,977.58 : 46,468.13 = 8,789.20 : x
  2. Step 2: Convert to fraction form
    30,977.58/46,468.13 = 8,789.20/x
  3. Step 3: Cross multiply
    30,977.58x = 46,468.13 × 8,789.20
  4. Step 4: Simplify right side
    30,977.58x = 408,417,710.17
  5. Step 5: Solve for x
    x = 408,417,710.17/30,977.58
  6. Step 6: Final answer
    x = 13,184.30

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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.