Home / 48,428.31-72,606.41-20,356.59

Finding the Fourth Proportional to 48,428.31, 72,606.41 and 20,356.59

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Solution

The fourth proportional to 48,428.31, 72,606.41 and 20,356.59 is: 30,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.31 : 72,606.41 = 20,356.59 : x
  2. Step 2: Convert to fraction form
    48,428.31/72,606.41 = 20,356.59/x
  3. Step 3: Cross multiply
    48,428.31x = 72,606.41 × 20,356.59
  4. Step 4: Simplify right side
    48,428.31x = 1,478,018,817.96
  5. Step 5: Solve for x
    x = 1,478,018,817.96/48,428.31
  6. Step 6: Final answer
    x = 30,519.73

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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.