Home / 39,821.20-59,731.80-34,280.80

Finding the Fourth Proportional to 39,821.20, 59,731.80 and 34,280.80

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Solution

The fourth proportional to 39,821.20, 59,731.80 and 34,280.80 is: 51,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.20 : 59,731.80 = 34,280.80 : x
  2. Step 2: Convert to fraction form
    39,821.20/59,731.80 = 34,280.80/x
  3. Step 3: Cross multiply
    39,821.20x = 59,731.80 × 34,280.80
  4. Step 4: Simplify right side
    39,821.20x = 2,047,653,889.44
  5. Step 5: Solve for x
    x = 2,047,653,889.44/39,821.20
  6. Step 6: Final answer
    x = 51,421.20

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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.