Home / 39,661.20-59,427.48-20,940.24

Finding the Fourth Proportional to 39,661.20, 59,427.48 and 20,940.24

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Solution

The fourth proportional to 39,661.20, 59,427.48 and 20,940.24 is: 31,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.20 : 59,427.48 = 20,940.24 : x
  2. Step 2: Convert to fraction form
    39,661.20/59,427.48 = 20,940.24/x
  3. Step 3: Cross multiply
    39,661.20x = 59,427.48 × 20,940.24
  4. Step 4: Simplify right side
    39,661.20x = 1,244,425,693.80
  5. Step 5: Solve for x
    x = 1,244,425,693.80/39,661.20
  6. Step 6: Final answer
    x = 31,376.40

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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.