Home / 20,762.16-31,146.36-6,717.51

Finding the Fourth Proportional to 20,762.16, 31,146.36 and 6,717.51

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Solution

The fourth proportional to 20,762.16, 31,146.36 and 6,717.51 is: 10,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.16 : 31,146.36 = 6,717.51 : x
  2. Step 2: Convert to fraction form
    20,762.16/31,146.36 = 6,717.51/x
  3. Step 3: Cross multiply
    20,762.16x = 31,146.36 × 6,717.51
  4. Step 4: Simplify right side
    20,762.16x = 209,225,984.76
  5. Step 5: Solve for x
    x = 209,225,984.76/20,762.16
  6. Step 6: Final answer
    x = 10,077.27

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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.