Home / 38,429.20-57,643.80-34,346.80

Finding the Fourth Proportional to 38,429.20, 57,643.80 and 34,346.80

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Solution

The fourth proportional to 38,429.20, 57,643.80 and 34,346.80 is: 51,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,429.20 : 57,643.80 = 34,346.80 : x
  2. Step 2: Convert to fraction form
    38,429.20/57,643.80 = 34,346.80/x
  3. Step 3: Cross multiply
    38,429.20x = 57,643.80 × 34,346.80
  4. Step 4: Simplify right side
    38,429.20x = 1,979,880,069.84
  5. Step 5: Solve for x
    x = 1,979,880,069.84/38,429.20
  6. Step 6: Final answer
    x = 51,520.20

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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.