Home / 39,783.76-59,687.89-20,055.60

Finding the Fourth Proportional to 39,783.76, 59,687.89 and 20,055.60

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Solution

The fourth proportional to 39,783.76, 59,687.89 and 20,055.60 is: 30,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,783.76 : 59,687.89 = 20,055.60 : x
  2. Step 2: Convert to fraction form
    39,783.76/59,687.89 = 20,055.60/x
  3. Step 3: Cross multiply
    39,783.76x = 59,687.89 × 20,055.60
  4. Step 4: Simplify right side
    39,783.76x = 1,197,076,396.55
  5. Step 5: Solve for x
    x = 1,197,076,396.55/39,783.76
  6. Step 6: Final answer
    x = 30,089.58

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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.