Home / 35,818.56-49,433.28-20,712

Finding the Fourth Proportional to 35,818.56, 49,433.28 and 20,712

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Solution

The fourth proportional to 35,818.56, 49,433.28 and 20,712 is: 28,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.56 : 49,433.28 = 20,712 : x
  2. Step 2: Convert to fraction form
    35,818.56/49,433.28 = 20,712/x
  3. Step 3: Cross multiply
    35,818.56x = 49,433.28 × 20,712
  4. Step 4: Simplify right side
    35,818.56x = 1,023,862,095.36
  5. Step 5: Solve for x
    x = 1,023,862,095.36/35,818.56
  6. Step 6: Final answer
    x = 28,584.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.