Home / 39,873.87-59,781.34-13,210.19

Finding the Fourth Proportional to 39,873.87, 59,781.34 and 13,210.19

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Solution

The fourth proportional to 39,873.87, 59,781.34 and 13,210.19 is: 19,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.87 : 59,781.34 = 13,210.19 : x
  2. Step 2: Convert to fraction form
    39,873.87/59,781.34 = 13,210.19/x
  3. Step 3: Cross multiply
    39,873.87x = 59,781.34 × 13,210.19
  4. Step 4: Simplify right side
    39,873.87x = 789,722,801.64
  5. Step 5: Solve for x
    x = 789,722,801.64/39,873.87
  6. Step 6: Final answer
    x = 19,805.52

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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.