Home / 32,720.76-49,078.31-20,242.71

Finding the Fourth Proportional to 32,720.76, 49,078.31 and 20,242.71

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Solution

The fourth proportional to 32,720.76, 49,078.31 and 20,242.71 is: 30,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.76 : 49,078.31 = 20,242.71 : x
  2. Step 2: Convert to fraction form
    32,720.76/49,078.31 = 20,242.71/x
  3. Step 3: Cross multiply
    32,720.76x = 49,078.31 × 20,242.71
  4. Step 4: Simplify right side
    32,720.76x = 993,477,895.41
  5. Step 5: Solve for x
    x = 993,477,895.41/32,720.76
  6. Step 6: Final answer
    x = 30,362.31

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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.