Home / 47,280.57-65,273.84-31,386.75

Finding the Fourth Proportional to 47,280.57, 65,273.84 and 31,386.75

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Solution

The fourth proportional to 47,280.57, 65,273.84 and 31,386.75 is: 43,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,280.57 : 65,273.84 = 31,386.75 : x
  2. Step 2: Convert to fraction form
    47,280.57/65,273.84 = 31,386.75/x
  3. Step 3: Cross multiply
    47,280.57x = 65,273.84 × 31,386.75
  4. Step 4: Simplify right side
    47,280.57x = 2,048,733,697.62
  5. Step 5: Solve for x
    x = 2,048,733,697.62/47,280.57
  6. Step 6: Final answer
    x = 43,331.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.