Home / 39,821.20-59,731.80-39,206.80

Finding the Fourth Proportional to 39,821.20, 59,731.80 and 39,206.80

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Solution

The fourth proportional to 39,821.20, 59,731.80 and 39,206.80 is: 58,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.20 : 59,731.80 = 39,206.80 : x
  2. Step 2: Convert to fraction form
    39,821.20/59,731.80 = 39,206.80/x
  3. Step 3: Cross multiply
    39,821.20x = 59,731.80 × 39,206.80
  4. Step 4: Simplify right side
    39,821.20x = 2,341,892,736.24
  5. Step 5: Solve for x
    x = 2,341,892,736.24/39,821.20
  6. Step 6: Final answer
    x = 58,810.20

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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.