Home / 20,670.54-31,005.93-5,088.06

Finding the Fourth Proportional to 20,670.54, 31,005.93 and 5,088.06

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Solution

The fourth proportional to 20,670.54, 31,005.93 and 5,088.06 is: 7,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.54 : 31,005.93 = 5,088.06 : x
  2. Step 2: Convert to fraction form
    20,670.54/31,005.93 = 5,088.06/x
  3. Step 3: Cross multiply
    20,670.54x = 31,005.93 × 5,088.06
  4. Step 4: Simplify right side
    20,670.54x = 157,760,032.20
  5. Step 5: Solve for x
    x = 157,760,032.20/20,670.54
  6. Step 6: Final answer
    x = 7,632.12

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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.