Home / 39,828.16-59,751.12-12,128.32

Finding the Fourth Proportional to 39,828.16, 59,751.12 and 12,128.32

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Solution

The fourth proportional to 39,828.16, 59,751.12 and 12,128.32 is: 18,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.16 : 59,751.12 = 12,128.32 : x
  2. Step 2: Convert to fraction form
    39,828.16/59,751.12 = 12,128.32/x
  3. Step 3: Cross multiply
    39,828.16x = 59,751.12 × 12,128.32
  4. Step 4: Simplify right side
    39,828.16x = 724,680,703.72
  5. Step 5: Solve for x
    x = 724,680,703.72/39,828.16
  6. Step 6: Final answer
    x = 18,195.18

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