Home / 29,220.20-43,830.30-10,509.20

Finding the Fourth Proportional to 29,220.20, 43,830.30 and 10,509.20

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Solution

The fourth proportional to 29,220.20, 43,830.30 and 10,509.20 is: 15,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220.20 : 43,830.30 = 10,509.20 : x
  2. Step 2: Convert to fraction form
    29,220.20/43,830.30 = 10,509.20/x
  3. Step 3: Cross multiply
    29,220.20x = 43,830.30 × 10,509.20
  4. Step 4: Simplify right side
    29,220.20x = 460,621,388.76
  5. Step 5: Solve for x
    x = 460,621,388.76/29,220.20
  6. Step 6: Final answer
    x = 15,763.80

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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.