Home / 20,812.95-31,209.86-6,018.35

Finding the Fourth Proportional to 20,812.95, 31,209.86 and 6,018.35

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Solution

The fourth proportional to 20,812.95, 31,209.86 and 6,018.35 is: 9,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,812.95 : 31,209.86 = 6,018.35 : x
  2. Step 2: Convert to fraction form
    20,812.95/31,209.86 = 6,018.35/x
  3. Step 3: Cross multiply
    20,812.95x = 31,209.86 × 6,018.35
  4. Step 4: Simplify right side
    20,812.95x = 187,831,861.63
  5. Step 5: Solve for x
    x = 187,831,861.63/20,812.95
  6. Step 6: Final answer
    x = 9,024.76

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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.