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Finding the Fourth Proportional to 39,673.12, 59,403.03 and 20,914.15

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Solution

The fourth proportional to 39,673.12, 59,403.03 and 20,914.15 is: 31,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.12 : 59,403.03 = 20,914.15 : x
  2. Step 2: Convert to fraction form
    39,673.12/59,403.03 = 20,914.15/x
  3. Step 3: Cross multiply
    39,673.12x = 59,403.03 × 20,914.15
  4. Step 4: Simplify right side
    39,673.12x = 1,242,363,879.87
  5. Step 5: Solve for x
    x = 1,242,363,879.87/39,673.12
  6. Step 6: Final answer
    x = 31,315.00

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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.