Home / 30,064.74-45,112.67-21,812.87

Finding the Fourth Proportional to 30,064.74, 45,112.67 and 21,812.87

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Solution

The fourth proportional to 30,064.74, 45,112.67 and 21,812.87 is: 32,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.74 : 45,112.67 = 21,812.87 : x
  2. Step 2: Convert to fraction form
    30,064.74/45,112.67 = 21,812.87/x
  3. Step 3: Cross multiply
    30,064.74x = 45,112.67 × 21,812.87
  4. Step 4: Simplify right side
    30,064.74x = 984,036,607.77
  5. Step 5: Solve for x
    x = 984,036,607.77/30,064.74
  6. Step 6: Final answer
    x = 32,730.59

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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.