Home / 30,955.20-46,426.80-8,763.12

Finding the Fourth Proportional to 30,955.20, 46,426.80 and 8,763.12

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Solution

The fourth proportional to 30,955.20, 46,426.80 and 8,763.12 is: 13,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.20 : 46,426.80 = 8,763.12 : x
  2. Step 2: Convert to fraction form
    30,955.20/46,426.80 = 8,763.12/x
  3. Step 3: Cross multiply
    30,955.20x = 46,426.80 × 8,763.12
  4. Step 4: Simplify right side
    30,955.20x = 406,843,619.62
  5. Step 5: Solve for x
    x = 406,843,619.62/30,955.20
  6. Step 6: Final answer
    x = 13,142.98

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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.