Home / 39,812.16-59,727.12-12,112.32

Finding the Fourth Proportional to 39,812.16, 59,727.12 and 12,112.32

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Solution

The fourth proportional to 39,812.16, 59,727.12 and 12,112.32 is: 18,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.16 : 59,727.12 = 12,112.32 : x
  2. Step 2: Convert to fraction form
    39,812.16/59,727.12 = 12,112.32/x
  3. Step 3: Cross multiply
    39,812.16x = 59,727.12 × 12,112.32
  4. Step 4: Simplify right side
    39,812.16x = 723,433,990.12
  5. Step 5: Solve for x
    x = 723,433,990.12/39,812.16
  6. Step 6: Final answer
    x = 18,171.18

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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.