Home / 30,678.21-46,017.90-9,617.79

Finding the Fourth Proportional to 30,678.21, 46,017.90 and 9,617.79

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Solution

The fourth proportional to 30,678.21, 46,017.90 and 9,617.79 is: 14,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.21 : 46,017.90 = 9,617.79 : x
  2. Step 2: Convert to fraction form
    30,678.21/46,017.90 = 9,617.79/x
  3. Step 3: Cross multiply
    30,678.21x = 46,017.90 × 9,617.79
  4. Step 4: Simplify right side
    30,678.21x = 442,590,498.44
  5. Step 5: Solve for x
    x = 442,590,498.44/30,678.21
  6. Step 6: Final answer
    x = 14,426.87

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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.